Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd41774dbc4587ea1db96589d9ecb806a6d3c5acdd382ea4657c3045e2f2ae9c8' 
  AND token = 'vR6s5GG59137oljD5OtyvfnDbu0sBbIq4wlDy1H8HOA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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