{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10885",
    "entityType": "User",
    "nonce": "0x437eb3aa7b9253d4688178f1342830e3e349f75910ab8ccc0af15f73f89a3fd9",
    "signature": "0xa76b2cf11f13bec9d73d92591a9724f6043d54d4467fc62890cb4c1ed4c9e90f6b76465bb935a6308d0c2a25c59a2e2d15b8a819249ceb78aeb421f99f2aa30b1b",
    "signer": "0x5A4a438EB48E0567283E8B2Fcb511DE3cD0Da231",
    "userId": "102202598"
  }
}