{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988934176",
    "entityType": "User",
    "nonce": "0x69c54ed013bb3e413f133905ae0887f916db478971e9d7f8f690a2b79ab187fe",
    "signature": "0x3004c8780466f1171167a5da5ff97c8a3842161c6c1fb96baf7f56ca23865cba2541e49d52cfb9efb174e33a9ba13e67b633493e9bc6dd4186fe9508a87d22991b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}