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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '20103eeb73aca8929edc4884baa403bd88702b4fd70a93f0a724c203f6b81715' 
  AND token = 'oIgvIzl64Me/QQi5Hjn03CPaPsniZ8xtzonHmwo5o9I=' 
  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"
    }
  }
}