SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '12011f8037117e01814c1f718d852b3323ef363abce7c709e79c0e7177c062df' 
  AND token = 'MGGMgAVMNX0hK5j8uBsAIuDosHwFxLmUgzJlMVvJRQw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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