{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xac41a792a0b3e560ce2fd6aa311c5c5eb66db3c81d1c05e0dab46e0fad8118cb",
    "signature": "0x030ebe5b87e125d9f7aafea3668b140172603af3e0e1bd1a68e8380e06549f7d7301d7bc403e402c2fe4de95e0803cb4ff0d1c8d56b36488c406170155a278f81b",
    "signer": "0x5ff90b5C3D053A72270Be3D4b0511A4DeaB42a72",
    "userId": "665294139"
  }
}