Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7e27b8399ad3d787c93d577b732349dc120b59af705710ecc58edbd3acc291a0' 
  AND token = 'o20OBEcZJwMelLjFUM//zkhXCyNQdoJsUrzMx2mkjyw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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