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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'd7fba79ee74da6a552159fc20d6d33054b40ef5b41da794b3b31e544548bbb39' 
  AND token = '17ULPE6s5x/D46H1w07Kl3mMdWgbBH4BXRv/u4WcxtM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00007

JSON explain

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