Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c965c057664c6333181f18010fb0838e243971c04b29d360d7809514d41ac2c3' 
  AND token = 'J5p6h/CkOkyGIAVT7/a6MTztyPuxEetjv3aMEoQRFgc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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