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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '626c7afc59ff02f31c4e4b48c2e30a7aef12d9db918387412dd9ec53e894ff1f' 
  AND token = 'jLWX4929O5iYE9/highM6MZp7EvhrEWzVu0M5iQYkbw=' 
  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"
    }
  }
}