SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'bbd7e2c32e44126ba8b5e5c4b69decd64e14087402d7f5413ae8d8569fe332a8' 
  AND token = 'NBi+oWJMey/h62YnlSVKpXthrO3gR0TIX5UwYV26o1M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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