{
  "manageEntity": {
    "action": "Update",
    "entityId": "908133358",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x59f4c34218e023dacfaa0c931bb3d4ac61e1ac98fe0a7ce1d9e7700ac3909652",
    "signature": "0xd904e2a803e6dd145f5700f6598cc0573842a9e38e93df869b6536b27e07ce2076347099528d58df3b3408294fecf74b5b500a7c93971f6272f0259f14fe8eb01c",
    "signer": "0x35e50F666BEE9D3DE7762F92778BB94bEE82b2BF",
    "userId": "908133358"
  }
}