Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'e16605af2c85750123a333ee8df46ea7403c2dab531436d82fbb9ed376c24796' 
  AND token = '2NIDe97gHj40R2gh/2tV0IiVfmPJ49/HvFjDENNTPgs=' 
  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"
    }
  }
}