Get Signature Request

{  "signature_request": {    "signature_request_id": "fa5c8a0b0f492d768749333ad6fcc214c111e967",    "title": "Purchase Agreement",    "original_title": "Purchase Agreement",    "subject": "Purchase Agreement",    "message": "Please sign and return.",    "metadata": {},    "created_at": 1570471067,    "is_complete": true,    "is_declined": false,    "has_error": false,    "custom_fields": [],    "response_data": [      {        "api_id": "80c678_1",        "name": "Needs Express Shipping",        "signature_id": "78caf2a1d01cd39cea2bc1cbb340dac3",        "value": true,        "type": "checkbox"      },      {        "api_id": "80c678_2",        "name": "Shipping Address",        "signature_id": "78caf2a1d01cd39cea2bc1cbb340dac3",        "value": "1212 Park Avenue",        "type": "text"      },      {        "api_id": "80c678_3",        "name": "DateSigned",        "signature_id": "78caf2a1d01cd39cea2bc1cbb340dac3",        "value": "09/01/2012",        "type": "text"      }    ],    "signing_url": null,    "signing_redirect_url": null,    "details_url": "https://app.hellosign.com/home/manage?guid=fa5c8a0b0f492d768749333ad6fcc214c111e967",    "requester_email_address": "me@dropboxsign.com",    "signatures": [      {        "signature_id": "78caf2a1d01cd39cea2bc1cbb340dac3",        "signer_email_address": "john@example.com",        "signer_name": "John Doe",        "signer_role": null,        "order": null,        "status_code": "signed",        "signed_at": 1346521550,        "last_viewed_at": 1346521483,        "last_reminded_at": null,        "has_pin": false,        "has_sms_auth": false      }    ],    "cc_email_addresses": []  }}