{
  "manageEntity": {
    "action": "Update",
    "entityId": "224019652",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8676d96d0c1cd9694a53ee47360866e5d4269be1ca75329ce6400261f0111519",
    "signature": "0xbcc91aa0532dd6d31464d05d01e662880d79514a780bb0fa08c01b7ff5aa2f7a501bbd9014cb46dda325d77bfd53585fd44771fa2c46cbb417af52973ab21f961b",
    "signer": "0x7964a5eF7E9a780013d3886B40ca04443D69588D",
    "userId": "224019652"
  }
}