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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'fb482fc25aae75dda0322b9954764603803310f3374563ebb4443b94de190ccb' 
  AND token = '6zjpl4MzOtyWzSFgF3Ji7F5gO07u1zM6E1r1vfIaikk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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