{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x67b3cb181edea2bd7e3e2282c7f7bdfbb82b81f1f3cd3459cfd9867d0d73a176",
    "signature": "0x4abc6381b2cbf9cade022ea3fb5f4c0427c059fcde2e4f0ab2003bbde3bd2d7300845a65c2b3863ef4e536c964abd0ae06b4ed6c1a87203b65b36d94b364db531b",
    "signer": "0x2044d6fdC3EC44a2f1f5Be85ac07F07FeAA98A55",
    "userId": "627062325"
  }
}