{
  "manageEntity": {
    "action": "Update",
    "entityId": "696978255",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x55558a8b70145f028028753dc39ed6e0f64c089f0a7cec25abb9392aee130870",
    "signature": "0x420dab684a8125aa3734d4fb6607a37a402a4d63448835660ba7d48b3faf13cc5594ebab0f826eb1a7dbb32e7264b624dbb0074220868ba908e99b2bb12ffbcd1b",
    "signer": "0x60495664C60cF8427e991465f31ABe2F9dC345A5",
    "userId": "696978255"
  }
}