{
  "manageEntity": {
    "action": "Update",
    "entityId": "445832820",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6e583d169e19d8ed31c2166596b86b0aa8f1b501e96f100e7fa60e20b7ed493c",
    "signature": "0x8d2edb0dedf8c76b540024a0fdb69418e6d50f5b36a1788b9f705218a92c95d73db68730461edd1bbf3631abe20feed0bb339ac696490bdcd2c0e1f237b42a811b",
    "signer": "0x705cD505dC4C033c9D74f1F23035707Bd6b9B1F3",
    "userId": "445832820"
  }
}