Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4f4930e274b51475a3934f5eee86900bdd4e748f9a8103125c8c97b27b20145a' 
  AND token = 'GYRk9pdQsK0gQNzep51U4gD5lr7l5ZjYtkHrhSkzll4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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