Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06657a941bb94764b0a52a2ba98c120ee29d264f3d3736d262509b4c086b6e07' 
  AND token = 'mnLOVhxw0Y/T/BafBN8kVpIKMUphrHO2+q36tr5DDRY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00012

JSON explain

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