{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x799286ef4907439bdb15dffa5e56bfa5b2240ba3e03f2c8a7758440d041b4e47",
    "signature": "0xd561a5ed6574bf8f09b1903d66ee5ad86a4cc6d8d80392b4e9026cdebecbefff56d9bf8f0b60d530c59f736bffec0d5e9a126e1cc5bae22040ce7c53e17af2441b",
    "signer": "0x2230770EC85946F97685aDECD4b734f51662F050",
    "userId": "887741865"
  }
}