{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x33e3dc5ab3aeb0db3e914d13f41c52ed4620c132ea741043e57a5a05adfff549",
    "signature": "0xaf16e6de3f1c975efc8dacdd610cccc2391678e2c3f58d0bf3ebacd3d847643257679e62db2bb30dd4e9693c4c6135927ba8732792ed077d1791db48a4e0c95b1b",
    "signer": "0x877d1EdD4E404E689cd42061d436dA9fC40aFFE2",
    "userId": "9482017"
  }
}