{
  "manageEntity": {
    "action": "Update",
    "entityId": "526538887",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbcf51fdf5fc4102cfed1d9c4f4f8d785725594bab44531dc053e6a92f92eb8ff",
    "signature": "0xde64baa10f19b5219cb2f725b3c678d943b31dcce4fd83a846993ee36cd315ff68d8650270abab063765d6c547b71fed6acc30d3b2a1d3805d8acbe59745a7031b",
    "signer": "0x1116A061F279e5d6Bf102d9d841BEC0961FbfDa0",
    "userId": "526538887"
  }
}