Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5906028faa9b9bb37825a2748a120f8969599bb730710a0ada9c9022e9393af0' 
  AND token = 'hWy12k++TLSMoIaNk5CafJOYZsN+RpG8E7d7wOmK5MI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00074

JSON explain

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