{
  "manageEntity": {
    "action": "Update",
    "entityId": "317339853",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x27b0973e9c162610c182ff38b77a854892c42af72c7910ba725039efb02a8482",
    "signature": "0xf275a3b631903e7fac77b695cedd82ce94d41ce92cf74d5c661caca5f6f2db6c478197c31f9ae26d3c7047f5ea504f51e5092f7c2d45f00def99da957b37b3041c",
    "signer": "0xa862A21254d5Aa03eA4D1C3938CA831bbfb8b7e0",
    "userId": "317339853"
  }
}