{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "253005",
    "entityType": "User",
    "nonce": "0x9b6d9314ceac5bf817867a2df564aae175e0170a04e994831fd63835c3e0c3a3",
    "signature": "0x1ac2a129f30941177f589b591bd9e4c0ba9419ac759af8c0fa72f4fe27b9abd748549c18402a64f7e69a964c99290358161183f5e2dffcb4e94aee27713e5f3a1b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}