{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121458",
    "entityType": "User",
    "nonce": "0xcc0f0c5c20f759e0e31c28f4c29f937d88e4915e176f9330155b8c8efff9fea9",
    "signature": "0x7c1f81a7da426bb8d660ac1c8ae6378857cdef0c2b1040af9fe21440ffc0ec6337faa52295dafb96c5eaeab73eb2de6d634faa7c7b8dc9f566cf83003efa1c251c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}