{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0x1a43b80656842753ee4ba3c454c69fbf3826533b607a41e40cb59476ed5afd30",
    "signature": "0x6797255ab005c3eb486974e54447a7a043e5eb32a32e58f19e7ed8a8ae2b7f4c598f520101ab3b83fa9a076ec2979c3e6a982f5c2784e98e507aab547d0e23ec1b",
    "signer": "0xd32819732210Ea4B81f5Ee202a2bcb7704aFEaA1",
    "userId": "714016562"
  }
}