{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584186978",
    "entityType": "User",
    "nonce": "0xca18aeeaa8be748220cd39c716359eba6992b8f6eb91e4b3a2dc446f7f76e44b",
    "signature": "0xd612417b1beb70b74bda5b97b221a79750aa85a98819ff73e29b730e9157a43130caf2f41cb558baf2ee836053d80f370e054c73e9ab9edea2c64156031d71d21c",
    "signer": "0x3e4953461b6671604B2E8fcD0BdB628DF4C16609",
    "userId": "167051786"
  }
}