{
  "manageEntity": {
    "action": "Update",
    "entityId": "247554309",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x66a378f9cf05772a9c3fa67c0a41c710496517d9d5f8c6b210c135427b051a9d",
    "signature": "0x3f550613ac8600e7b022c31a2032f179b856b5448fa07f951f8ed17204d9deba59b2fec2b10f5fdd72f208deb2698647172b6ef5e345333febc918e70103103f1c",
    "signer": "0x68F38da15A71f4f3D17bB10F0B794d147C64D66b",
    "userId": "247554309"
  }
}