Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4feb0e2f86a54566a805245a18e93cf4f663a829e5c52d554d8c77153f843a1b' 
  AND token = 'J1SiGLH5NWe9GVBlrWZZ0Ngw98UN4GNRtzh9brATeOM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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