Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7d4998f05c94578cff3bfc415cac676eb8b1aeb0eddb2aee4f852bf15433e5c1' 
  AND token = '24JuDomvjSNee6YChhFGAKymdFtdabl15irqniXaLqA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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