{
  "manageEntity": {
    "action": "Update",
    "entityId": "696978255",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd952f51180e19fcd8398063318c88fcf21b4bad84e242126ea2b44055f7c0d6f",
    "signature": "0xb1e7ce397c03013f1921fe2cc5eb924d0a86fea3692d8f689d019ba50de2cc273ba084dc11d8e29b2746732acc72561f9e697335a7047b260045e9c7571330111c",
    "signer": "0x60495664C60cF8427e991465f31ABe2F9dC345A5",
    "userId": "696978255"
  }
}