{
  "manageEntity": {
    "action": "Update",
    "entityId": "756614075",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd835a73c253fb67243d98766d04c4dd2aa7b45e644f94a6185c511fdb6570c2d",
    "signature": "0x5830c5593b994e56903adb0cd7a6f98e4b5365d36a488db7e33d54ef3991860712b4f8d6ce19d6ce1790edead07ef86107924cd5894e6af71c8d2f585952c8231b",
    "signer": "0x930d6F9Ac58B5a72c3c68840A9dE44Ecc8B58a83",
    "userId": "756614075"
  }
}