{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0x4729e8544d3344e12e43c77edf995781192e3ef1fafcedf58ba82676af30551a",
    "signature": "0xd1c59592b7e015b2cd0729fde02af31b2fbd889003baaabe060b902045a6ba02626257f6ad9a336e117807bbff50c5e60e94b3ce189b1453dc11db02b92487f51b",
    "signer": "0xE13A6FCE083A5e5583Fc5b481c0Fb6754F085eC2",
    "userId": "662847056"
  }
}