{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x400eb4ef5c325763d65a9d945755de576f010b05b631e4ae9af31374d7f39ad5",
    "signature": "0xed08d23744b30d310d988f5962d8227c7a4bbcc18cfba0e2012e7986bf83b2ca5fe997603e0b54cfb4e29c7493d0dca73ad504feff7e4bc5dc47ae336815cf8e1c",
    "signer": "0x9acF8CBE8f2B0d51e756C58D6d1f946A8757602F",
    "userId": "428941685"
  }
}