SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = 'bae86ea8b496e83f62003f276442367cee6a08548230a94d2f67086c42df1150' 
  AND token = 'tFPyWWBvGj3Mhnp/5AcENTWkJnpURVzxgC0wrzataWo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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