Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '164bed362d5fd563df10c23ea6291d62ce19a4633f3f9e14fc1fc1ef8acd5ee7' 
  AND token = 'JheqhwJva3qAe3+ulSnq6vkulFD2p/IliSFfgG9KIzY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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