{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "501481207",
    "entityType": "User",
    "nonce": "0xeb71a13fd81e53b403718fc7963be0ea518f7a1d79dff8e6fa27c71ae86836ec",
    "signature": "0xc7d6ab87e153baaa464fe7bfdc72820434f14e15d5813192bca9703f8ffb82ec41197ef5d6ba9f9e08e3d550e11660a7cf3f582d6ff74da228b657ec356138ab1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}