SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'fd077df9d8973d15938e4b21e01bae27a859fc50d5306c08b2aac1501056dcf4' 
  AND token = 'BYmgR3QiE94Lhklt6Kx7Jw4G/X9FXjTSqG/n2OXRauc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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