{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x139ec89951dc028d198020f02463db490181e0e12a354eac626776eb6714df73",
    "signature": "0xb1126ce88c67b9ef6bb5a85d5e828029e3a82216eb8a184f5c3c51b1b1a752940ddb17135ae79bbc4cdee281a78b7579d490e0004dbc7a792b6837cfcf492bc41c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}