{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "279",
    "entityType": "User",
    "nonce": "0x12aa3290495bd9a7605d3e89a61efc755f350f2da4eac4e1a2814776fd6354fe",
    "signature": "0xc7c3852dc3f78bef2481ac543772122186849ec156d50a80e003e81066faeab15d5dfcac738ea041875b8adf7d7124f0dc931662352915760df5759524f0196e1b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}