{
  "manageEntity": {
    "action": "Update",
    "entityId": "950485788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0e5b67f11e2c00104478786f8700d72f8b398555bf5d49f2aeefd0127ad0e24c",
    "signature": "0xb1d9bb82c32c3ae44719e572eb50e673b873112ab37318ff8e891f1d0539ec123c788d95d32524e9b5b68c97d7e54b63d9873bc8efd5933c7a43f9b79364e5731c",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}