Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7d58aa027be22d90efeb20d42a45598ae03f313697e0371ffcf2addbc105e1e6' 
  AND token = 'gmO+SASSyF3y/PxJPcSc3ax43vACZ22Ua89TDOJDp34=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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