{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc926835d09d7b8679eb88fea22c6ed205eae4fa1e0f40cbdfd114a04c060c8c3",
    "signature": "0xfc26a20b9ed78611c9a381bd865242e4cb70d9d2f04087e7cd1f5d6b4cc787b411512aada4dde2819bf1e4e93b31ebce668e54521160ab57b96d1211704bce9f1c",
    "signer": "0xD23c96a130623326f2d6348fF466F611CC78067A",
    "userId": "607041972"
  }
}