{
  "manageEntity": {
    "action": "Update",
    "entityId": "657809158",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc5aa41c67b79b3885ab25fc58cab625477ef97ff93724894a3bb4387c4f529cf",
    "signature": "0xab2bfc26b92c62b90489029a530a50e6d92508c65bc9af3760259a03e172bb0c6cfbf64e787e7a47dd0b7e2f883a1568da692f511c370988a15f564856deea181b",
    "signer": "0xbe2519735C9A3Adcf25598F85E282a46988a1225",
    "userId": "657809158"
  }
}