{
  "manageEntity": {
    "action": "Update",
    "entityId": "291927005",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0afa6fe140a560f685d94d9020fa44c5e57f08482daa200609379f16580c93f2",
    "signature": "0xb03749627ce9f9b96c1a55c24b78438e3421d94353fcd429dac263d5919a84de3925232ef482a0737a90520c7beb00229db8652d2f3d5542194bc881f3e6ba531b",
    "signer": "0x7076396534508dCdBAcB5D11b30A5C3d22346182",
    "userId": "291927005"
  }
}