Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aed17610ce08fa230f9a4e5f8dfd125f59c127e50230adf3af4fd2c649b0dc80' 
  AND token = 'XGrqdmxGyJJ2zU8y222CEm+QvhqdglpX6anN1K+2I3M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}