{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984621213",
    "entityType": "User",
    "nonce": "0x9f75ac288a84ac16705969676af4f5edead6fa35c71c7712a077ca3b2968321d",
    "signature": "0x410a126cac62e79c172d50e6f64f475fc8e35bacc2ed38304b0196c973b2a4dd400c3b63bba9b0c424c6626c3d4d4a743b4daa4850c984a88eeb9623225ba4301b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}