{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x92591a4b4172631439263c25a24133ebd6537a83c45c077dd53aec6cd9355c48",
    "signature": "0x88e65298f1d408061787f4da56e7e1379bb30ee82638b00359e4b6f1c26b01bc0342bf24e8f52f31f4f187985faf2aa70daf1455248b22b1f5de36b2c93ea5911c",
    "signer": "0x60495664C60cF8427e991465f31ABe2F9dC345A5",
    "userId": "696978255"
  }
}