Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dbcac13094500a66bac0cb489e20946d6004ae4083d0de4259a3837816d27675' 
  AND token = 'xzq7e5fiQCiB5BX8TmWQgbFn/NAvO+QykKxUgPyKRM8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}