{
  "manageEntity": {
    "action": "Update",
    "entityId": "8174754",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xac0b5c44e7c4ee3df7c24d4ac2bec2e2ca96da7b000ebffe7b245bfda665dc75",
    "signature": "0x41278018b8d54f6b65a0649a252562fb47b1060fca8becef8e2f6a5a0f5920ba5fcfef64be0dbdcf510356b013acbc2cd746b093366d2d8a37d9d1efaf7e14cf1b",
    "signer": "0x2Ad423772F820cF8750Bc61a24e23059BA26A130",
    "userId": "8174754"
  }
}