{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdf30e4c7d469c862a9f1d6992e3258a95a2e94180e7386a6e400149dece1a446",
    "signature": "0x16a6865d059f3cd6f0f6cbc6c83ab2c1456e4b108ae15f492b8c8009e46160795bf90c2598ea63261e765b4277db202013ac5f9e478ecd9bb530eb2cb97ab1811b",
    "signer": "0x5ccB3DF813bFcd4B2361236a8Dd1282A6dA39B79",
    "userId": "27111630"
  }
}