{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb58cdc752db7a4bc5fc2f0d5c8d73945203c85361ec4c28ed33410393a7ef1c0",
    "signature": "0xa30439e6a2b4248ef4a064d824c04fc1a5e063e4568ff7bd298f586f52e8e299173f32fcfbc2734a48324092c2bae634ca7decf43bee69ae73e4578a230146241c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}