{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x69bfef92ab403bdfb2c6ba5c5da51261e883d9ec10a3ef4c1c3098d95163f284",
    "signature": "0x824851c401cdad30cdab2ce245351999e9f4b3baa245fa0d67c1c0143283fc4837005b026efb6b7d8c3476d602eb006ae404fb8b9a89589caa10fa6f8d2d57be1c",
    "signer": "0x6f4f67A10406f9800A35FFB82F5B17431982dA70",
    "userId": "548107023"
  }
}