{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283535234",
    "entityType": "User",
    "nonce": "0xfdf2b423bbb68619b044e95099f29c8a3ac9fee0bd03f0926f564806f87c240c",
    "signature": "0x7a363040cdc2ee96e480281d29df712e205b40fd65c5eca8dd7fa2ea06bf80a605a62dedda716f64377e2b8980d9db67bc1756f32454c1695fc51c8ad206fa2b1b",
    "signer": "0xfB6436C438F897b7eA739876B4Cfcca832868820",
    "userId": "512354652"
  }
}