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SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '07a2bf1e25363808d9dc6e2e849bee31a95d69db51c62e802b81fee094f11f22' 
  AND token = 'AoMogj/9DG6XaxmbhtkUiqqcvQ3VSsT12qyb1mhKJxw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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