Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '09e5781b0b82aff993cbdba0410d8c05af430721a2e89e26883fe7be8e11706f' 
  AND token = 'k2DG1uSxcSqocqQ+KRpMV5K/d8vLhMxKotN3n+gar8E=' 
  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"
    }
  }
}