{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311257477",
    "entityType": "User",
    "nonce": "0x93a401bb7e81b12aefd2aa33a0219abf4d1da88723c4ace5fd12273585f6d357",
    "signature": "0x0e9180fc2df8e957e78e4818154868bd231550246a54ee742e03f59501fb2f4b357912e1677db0548d40142335d63278d04b4888acebde328436c23f5bda2f431c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}