{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964257878",
    "entityType": "User",
    "nonce": "0xd488cb9b528b0993b26d4633764b895840e17a83dcb2c1ae9f7ede04b4d62434",
    "signature": "0x669722f95dc604389b803e1a2afc0f1f0a7fc9dd877557ac70865b236b6e98de125b9f6a40195f5b681c56faf0542289255a4a03bd1f4cfdfadcaaa881d212e91b",
    "signer": "0x97Ce19D122F5b51231cF4DBbd25Ac36CBDd6CACa",
    "userId": "426864186"
  }
}