{
  "manageEntity": {
    "action": "Update",
    "entityId": "261262090",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajnasbjamdoaigyk5us23j6cdqke724jnys6f2hbfhwvsreq3e4ba\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":482364655}]}}}",
    "nonce": "0x2a84954cdac73455376a38d21d255d4e7409397925d42e6c3676d1c3232217c9",
    "signature": "0xd94d9ef0ce3e18f2ec1a72cf161dc101e71a028ceaa0fd3cf268b1c364bb1b1d058edb86431095a05105b8e7d7b0c6a88daee4ed9d1c1366833e99a06df5b2e51b",
    "signer": "0xB5bE87A654141530b7455Ad2dd623De2C9aE2bD4",
    "userId": "261262090"
  }
}