{
  "manageEntity": {
    "action": "Update",
    "entityId": "340238662",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe9edec97dcd80bba7a06adad05ba2066698260815e0368d32ccec9c0b81d1f76",
    "signature": "0x0a8a8db654fa94ebbb90f834c9fbbaa5f2b956b82975ab805689f14bd06cf1ab36b957673f2c1a71ae0633b0a6677a23a8ffa1bf569aabd7b16a75615d8ae8631c",
    "signer": "0x8Aa01609dA8b5C3cf074ade7186BedB8A658A067",
    "userId": "340238662"
  }
}