Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'aa3d2c624bee493325dec3836f0ffb9dd578da133372374bc97600c6d375d33d' 
  AND token = 'c94Rf4+ASiIAC2dC2SGSfXNIY5Kei7BgFDqSoH5ZguY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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