{
  "manageEntity": {
    "action": "Update",
    "entityId": "208320997",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x19b9965728f90325bfb545477fc0d2c2fa1ebd864f7514e96a01d242459d9c92",
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    "signer": "0xD31D1F97127C695F294b5b4Bb141F237C33d3D7E",
    "userId": "208320997"
  }
}