{
  "manageEntity": {
    "action": "Update",
    "entityId": "711823641",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe9d448f60b9365238d0b3b46c6911e0e1db4cd33a2c4dbb24070955054fb6b9f",
    "signature": "0x8df8834e2688cf8785de08e692203cb08821c9889279510bfe933df4ee8450a80af0f2b475e3718a3be55d32006a95d2cdd574f3a253c97704a54d2950f154291c",
    "signer": "0x4Ba22D0ea80CC44bD88A8cEdAB57764A9c4bC414",
    "userId": "711823641"
  }
}