Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6874ae10eca3f563732f5a5ec95e99c952ab501c94d024810d29ff1027c7315f' 
  AND token = 'Itet8vcU4SwVj2N+4ShYZFRfZXRJS1idvvU3DuGOXmM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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