{
  "manageEntity": {
    "action": "Update",
    "entityId": "755824249",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe6f01e25e2db2c035e3927ad39ca5e51c6244272e59e8809fa0740d029fd5397",
    "signature": "0x28264c9489d5334ff2a9019e47e4bd0fc020da8411864235f5c92c50b1e1d2395fdfff274dff1409f3e82e1454fa3ff0b09b3559d1ba742796221de34740c9d61c",
    "signer": "0xc53c7384c3863D446b037A953675523caB6f6329",
    "userId": "755824249"
  }
}