SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '355d9d6b0a7b83df5f12fc0fb6794069101209e524013321b4e4eada872c9dcd' 
  AND token = 'Jq5TnbwQn5/8BGEhpg3yZY+e7g8M8H91VQVgQ6ze0ho=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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