{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5642",
    "entityType": "User",
    "nonce": "0xde77c1a214e8e3bb1f94b72c94de0add1fc0f3544930c93632920db0e581cf08",
    "signature": "0xf5c35bb7d834b115956d35251564514b1366a9e2eca27b634ec3c416c862cf2a647e5f2fd11814214c413bd17f934b3e1a4584389f27dd5e17b7c47722c364d01c",
    "signer": "0x30613aa1eb7e55d275A5F44e8c812CfE21FeAE9F",
    "userId": "617203042"
  }
}