SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '04ce9e158fb1805b7419fd37e746a680679f76ea94eb84f1fb33a535d2688264' 
  AND token = 'BFppFLPKdJKXBVtJYAg6vd7GYsCHhFL3ZEqh+fVFS7I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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