{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12859",
    "entityType": "User",
    "nonce": "0xbe756357a475e8d02320d380edd55a08a051405391c57ae8ac331519b13f73e0",
    "signature": "0x75be29eb6c213d4b058c50a805e932eae63bb5dfa4edaa6bb742bc20015ba0c633162d6a15002a90206ce7ad141cc42a6eb15d81adbc07a3965d36ecdd17e6af1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}