{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882402",
    "entityType": "User",
    "nonce": "0x229d2062de6d04619014f7e05aa4d41e51c154b4976e98ee035ca08c0a97e919",
    "signature": "0xd7b73bca9218b2fbd70c186a79d8eac6291d06efa958c9df771ea230bf93aa233653520158fb7025a6bb7723609f23e8b6bd3811f260de00c521fcabb89d53161b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}