{
  "manageEntity": {
    "action": "Update",
    "entityId": "175367139",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc268f3c5317be85250d209c77547ebabb05768e451ae3aef92f56d9b5c4c766a",
    "signature": "0x340cbfd3895d6220f2113c6644b29297895995ea9be314c6f1f9031b7d11f5814eff953473d9c108685e3f4bcbbf7b4849023862616776d68c680170cc1f8f1e1c",
    "signer": "0x0c1d536a8e25d462f7b228e2c1AF7bE925bD76C7",
    "userId": "175367139"
  }
}