{
  "manageEntity": {
    "action": "Update",
    "entityId": "209092535",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb15398fbf57ad3bc715429565d560c6a3cc4bde28e3a36a9aa3f6e24c5d1fe9b",
    "signature": "0x672de19000b2ae330049a4051ca79dd8c7b0a244453049deb5e594d006ab43f3194d311c13268874cae92cd3206ac3b9a37135cd826ee4383cb81acbe64ab47e1c",
    "signer": "0x4a2e182EFc2eb1f33854A9f8c72D0BC645c28234",
    "userId": "209092535"
  }
}