{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395952780",
    "entityType": "User",
    "nonce": "0x8b24311c6e46fb30499d7a8e583091a75630b149b7a3ddab7c4703b64c1a4e09",
    "signature": "0xa4f22d132aa3c9dc3367d37511cf47bd1d820d6b29d1d210c5fa3b018e65f54d223d8d9d6413fa8bb24c4a6d8e7c6a8ccb7196e58f7b666a91c838dc9ec1170b1b",
    "signer": "0xAB601814a3b7DB1149bE0b45154295028AB51f97",
    "userId": "613793033"
  }
}