{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "858059039",
    "entityType": "User",
    "nonce": "0xfa790ec3d0aa31b4c8ea6064bb331b6e32c0276cc456d44398e12b06e75113ab",
    "signature": "0x920f671181e2fd995874aa765f40d510073e9c3af6cd3908a2211b84abcb85db190e25b49a5feb5662ac40aaeacd10caca98690f6e25ed94c8368f08fd1bb8851b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}