{
  "manageEntity": {
    "action": "Update",
    "entityId": "431555736",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x29b3b107bc4d79bbaaba045cf818c51264fb83ee299fdc0b918c1f6349fd122b",
    "signature": "0xb58277454e087d56920f0438f0aacfdb20914e6ad7c663e8a9f2829127cbc2a902c73023ac1e135d99e96277bc2dc99bdc6b763017f9921fcf3583b99759deeb1b",
    "signer": "0xfd922fFe7bDCaD44A4Cb39ec62344aeA629Ae0ac",
    "userId": "431555736"
  }
}