{
  "manageEntity": {
    "action": "Update",
    "entityId": "409581012",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3039254d3317c875e6cb26f7c92b693f42fa81568ca854417167ddb38c362c9e",
    "signature": "0x339ef9449484a76aa1b6c9c6fb6a324041b3fbbef3e2f3203e48043a25577ac92949739498555d67de7f7148c3c545fbe3e29e0f0eab897cb348c914557030c61c",
    "signer": "0x5236D4A17c3e626543e337613025a70b5F26C797",
    "userId": "409581012"
  }
}