Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0071a49fdf5add7678ebdcaf92268f5ca9701f82121f63a96ff6128af1ce89a2' 
  AND token = 'o/A7Y1o92Wb4TfbiCtWVZvnbYX3l6XlVLRFVUlubVOs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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