{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "199368",
    "entityType": "User",
    "nonce": "0xdf52e48b377efd26e6a99a070eb989385da6f6b6e08100cc7dd83b811f6d8ff6",
    "signature": "0x481fee304acad6b238bdb1d6b2954cc754c5b9c2312a0020a4e028dc4d6d988c195ec31c7e262d90a2c5a287885e5ebaaa82b657d03faa1cb5b7c173c2fc55551b",
    "signer": "0x4fb7488f5456a739DDF545e792147e875bb60521",
    "userId": "693006137"
  }
}