{
  "manageEntity": {
    "action": "Update",
    "entityId": "188696382",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x996151e4169ac938ae9f21cd81fc037ce1547cf1e6b5c1b1d269b3f5d6e2c5fd",
    "signature": "0x1f41712b5090bbb3ee60375258dae7a56372175710cb0b1e220f7bccaa25c97b03acc068de626e2f31f99be74a9305138bbe77069b918a9ac67cd88a2e40cd851c",
    "signer": "0xAbf643A2637E75f29346CB35bb4DE880c0C5D408",
    "userId": "188696382"
  }
}