SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '090e06cf4cdda8156ca6ed95bbe00a2c1b5bd42fb68ac5ef2f79a3882c2e5df3' 
  AND token = 'pvha0/BVbCHx1QEGO4miUqDqzDvcXUrzFx7TznJbJg8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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