{
  "manageEntity": {
    "action": "Update",
    "entityId": "252933211",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x30d1341593d01dda6c715214acb2b362d24be0ab65f308228bcd22900f93a0ba",
    "signature": "0xb8d9675cae14411960438ea5dad294694f2fdf655fe76910f178ce924d2e820f2320edc0486e19d3c663fda2c81a4e29c7ee6390e1f3c2cb8aaa3b17cbe496e21b",
    "signer": "0x39ae26Ce5aEfA3872Ce90888be102a282C9254FF",
    "userId": "252933211"
  }
}