{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x34abed2c88b4ef16102f3b5efe91fb072b3bfe4066e37312396b5d18ca8d8fd3",
    "signature": "0x2e5f6515f9f8f00eca73931b9acede94b9f10e42af60058c0aae706920fe7dbe7bc559e95066b3ba3175fe7bf01bc94f1bf9c2830afec384bda50004304871c01c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}