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SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '7c780b96012201172b50b5f2acd9ecc57004241553afd4f6b348a6589b462034' 
  AND token = 'rO/94lHVsXI1oAg/4lw4E4T7D/BB3TsBopcsUyGW30A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00010

JSON explain

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