Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7e8469f5312a0e7d80c277619ce228364986bc22fc4fbc6f369312d04fe81dd4' 
  AND token = 'dx3O6FzUV9QbT5hmMBfkolZhsdKin9aT1kdBSg4RDHU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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