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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '05d5bcf08199a975201c5d93665dc34c8c5a120863248587faf31e3d734a4577' 
  AND token = 'ef83HbVq/OFhYG54/vvEymTD/OIgTrM1hNMmge1SkcE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

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