{
  "manageEntity": {
    "action": "Update",
    "entityId": "887741865",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4cd34a510f58ab1d2415238395cf40a534708c9aff9458c5bcf86d5a550f6175",
    "signature": "0x3fdaddc4181dcdde245a9c20b7ddf96e30c3a7692e15a1959b48f75d81cd91ed7a2b92bf086d8f65fd9e91fece37bad229e624320753decdf7db5b0bd12d59441b",
    "signer": "0x2230770EC85946F97685aDECD4b734f51662F050",
    "userId": "887741865"
  }
}