{
  "manageEntity": {
    "action": "Update",
    "entityId": "928468907",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xca84600a2db3e8f277740501a6924979a1ad982bc8b8d523a5f86f8713608cc1",
    "signature": "0x0ddb3c070dd0d05fb6f0c69c7653f9c8dc4ddca2c566bfa8d79aa38c029a4dd8449a7059c61a1268c491f15eb1ce7aa133fc495f79702c097147395d266e1b861b",
    "signer": "0xecf9145D0502a69272B9332bc2d87dF7cc3fB464",
    "userId": "928468907"
  }
}