{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x20b4e708ea9bbfe68d23e46762c849df8a878870d1770bd12d420c305156dffe",
    "signature": "0x9e5698c8e2ad0b03f6ad09567c86bd74acebecfbedf7d5d7641165d448f4b66a45f432f02de706be820197507e648acf5b64267eb3029cf0caf707b7f34e4cc31c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}