{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2154",
    "entityType": "User",
    "nonce": "0x9abe16f84a9ffd8e4d0f27a30996cae0e840a7512c5377bfdc81fba9de4cf71d",
    "signature": "0xf52114723df5f1698fdc7678f13af06259d812d7026e8028f4449f5f948ab82e7bd78c9e79dfcbe7c5900a4b2cb59b85d036c74938f61619b2c8f79bc4357cda1c",
    "signer": "0x38c65d779554649264FD5A23B412Dd6237e675c2",
    "userId": "839739705"
  }
}