{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105821",
    "entityType": "User",
    "nonce": "0x20d0387f41f451cca6feb1f093ebbc0c3bfc8857ae2d510f78ca6172a240c8df",
    "signature": "0x434b64bbcf462ce2df771a193b48fd7019fa0388d68d072fb9a7bc2ffb7434d921c60c8cd3ac3ec7792f8dc9015af558dd45211372f20cdfcead453b5cac89851c",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}