{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "310089",
    "entityType": "User",
    "nonce": "0xa9eca66cd9b46523cc65174ce669c0a321aca4d4a3a8f5d26b8153652de60bea",
    "signature": "0x3940a1effe7bda39b221da6e364810864c4881724d301c7e7452b6a0ed7c534c392b5a6b7e07d7e7cef33e956080599165317daf5249747cedd4856f4e7050f51c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}