{
  "manageEntity": {
    "action": "Update",
    "entityId": "353199189",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4d0e822b671d61ce9eea3d5c1025f71d544ec833b3a2766ab870e8f9139d71a0",
    "signature": "0x3ef168087b6d4e651035d8cb51dad686f915e3bdf4a1b94721c763b36632456b657b69e5fb379245c8ca4880eb122fbfbb961c19e17c719d6f8d7f0c8b28cec31c",
    "signer": "0x1E05b344e405fBE00fbB8344b72Ae1F9458B802A",
    "userId": "353199189"
  }
}