{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296407",
    "entityType": "User",
    "nonce": "0xec7d0291a7e55212775c5d7936cf7c8bd8bfe9f0ec51abd061ffc9e6d0c6c033",
    "signature": "0xde98e023bcc7d3872ac4a391fcfee7d0648499654a9b5d667de2f9bcd887c33b12336fde0e77ae41ed1055eb017b816ab2b3bfde78c58e9e8eba8794bb88715f1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}