Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '34c93678f859192b26a89402f4f6d08c235b46d82acb0b5074d9547f6d2f242b' 
  AND token = 'O49k7G2OFFT1anANI2vuXpNLxmcX8q2m2XLBEqBsLck=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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