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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'bcf287c697f5a8417e5f331f81e87c6b2d8d94fc2e11161b6b46a05e5e347849' 
  AND token = '0O1nRt6MDHm13DFQH8+TgF4e/mX6DHd4cA230Xszuzg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00009

JSON explain

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