{
  "manageEntity": {
    "action": "Update",
    "entityId": "799685125",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9ff3bfc21fa05d32c6c2c7d85a2b09b96ab3a31030ac652d062e150343539082",
    "signature": "0x16171e9788bb372a8f024527a1dbd8cd637af6378bd63e1941ea085266ce341a5c3215f6a6701c7ed32728a402542f92696cc84b1f4a8875fdddb0727165ddd81b",
    "signer": "0x1107a43818b75C4d3B55d3646BB485c86bd99f2d",
    "userId": "799685125"
  }
}