{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2c3d3f9c00fff314efd51fb51b4de656ab6ac274e6bf35d21f77d996bd1a2825",
    "signature": "0x87641ac9093493608f5383bde08eab3269b60bc89afcb08f69a604beda6898d951f182d9757ec82243c6074d40be03047db317ea67a4c6f0bedd675180c626ec1c",
    "signer": "0x7315e02d352D97bee742C3B3D87F3277D05bA410",
    "userId": "909822926"
  }
}