Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '711cb49bfc19fb4e9942526ce0db039b690c0006a57cd90988a1e5d59998ecfa' 
  AND token = 'uoMiZerL0g1/AcIO+p+YxnqcbcQpBY4jUub5GauNMyY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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