{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358423",
    "entityType": "User",
    "nonce": "0x31ee51947754b8f4b62a64754d5b59109e4f8619641c37110ac70ee28e787420",
    "signature": "0x717f230f07b3340b0313c3ea25b1d0ea6dceadc8d4aa01d3dea2a4e633f9c62c7113fa858bb766a941f9801b952d28f436059bfd86e03517348dd903906f1b9c1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}