{
  "manageEntity": {
    "action": "Update",
    "entityId": "275799540",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8385973b69ead37642ad697564caf82dec3034ac7fd4113fa6f675b8ddd27030",
    "signature": "0xea2fd4803ffd50b47dac9fe722fed321e8bc29881363bb13a7e66b494039d9d721205011cccd9d934d93941d6a6ff7e699dcf8cb24294761fe5c246850d6a50d1b",
    "signer": "0xDB5A147AE53021265B456ec04644E288A253C513",
    "userId": "275799540"
  }
}