Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3d26268f6ab21c22988767b82517c4a808c8fcc69d488ad27202a0a12f31b871' 
  AND token = 's3Tt8pL/FPaj6VBFMfuMhmq9DorkAfPjKgdEbgegh3c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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