{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xef5a048d85e9d6f2400a39c856fb1280825986a3949231c78495c9adc9e3d522",
    "signature": "0x4efb1038c308caa943b28cb8aebcce5ee764318c9ae625d527d2611e3ffdbe3e4c8ef0ffdabcf220186a02434c17314d2efd3044b2eeeee69ea6c8c9977474241b",
    "signer": "0x8EA5798e08E1Fa9c75787f2cb2790614cc99aA66",
    "userId": "243257051"
  }
}