{
  "manageEntity": {
    "action": "Update",
    "entityId": "866830155",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x80a4a6153d73f3da7d754c1d7a11747beee31dcf94957dc6fb527329ea92cf0b",
    "signature": "0x962b19f88c90e7860e4256383496e71f3df666432e66d4fb60533f3713a3301d5b8333a8cf4898690d995cf5c4c223640d0b476e846adfb77f4eaa32fb4736891b",
    "signer": "0x252c74c1aaF501B9cCB778fB058FFd88C3D4941C",
    "userId": "866830155"
  }
}