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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '04424e91de052d7edae1b82537a03f0cc12cd1d8ba63e899d58d24c11ffd02c9' 
  AND token = 'Wp0v3SUbAMMhT7QeoWwizx5UeJpArXWhqaxml2dULq4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}