{
  "manageEntity": {
    "action": "Update",
    "entityId": "786930128",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3001649204ab52fc8fd7da14eeb8361606a1911981e14b5ddebeb67a3989a897",
    "signature": "0xdce43bd337f7e3cec508d5c5ff41d2d3bdc8c772b2fe62eb27db6dfd21d889ce76e8164e46aae090c4e7355c096a49b6a1136da54011c0c582355a6e9b0494ce1b",
    "signer": "0xE02aFd436907dE50a09db961f0e4A522F2aa7887",
    "userId": "786930128"
  }
}