{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "618242981",
    "entityType": "User",
    "nonce": "0x5e77a8c9706e477c8d276fa0376a073b429b46023fb89e0d6a2a636600e2ccb7",
    "signature": "0x767dc839ac00a3776e26aea01e4b7001dbffd9bd8dbd13371705227f5f0714a67b5dd04419dc7740316ccfff3a4bc4fa88e257628e18347c17315218f8fa1c101c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}