SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '2da33d599922269b44be93d240b1ae71272245672bcb3e51a8253c781e54cc5a' 
  AND token = 'Ge8UFHrphyVU7j6VryzZHYASmK2j9dcYvW4YfwK5LJA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00008

JSON explain

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