Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd44afa1a63d730285ab63adf7c18f3c6c80ea1322d7a0b6fe98b262a53398696' 
  AND token = 'e1Bxw6LD2xMAa8VkvBd0+b+hf1LZuIQX8glTT/60/Ps=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00086

JSON explain

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