Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7ae310a62f5cc82900733b18b161d0b1d956a6c29a50c487384a82ce0bb6ba06' 
  AND token = 'bhcFrQAnORjVtWazHF15cWP5dRGX8mAlb2v4SAylCxE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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