{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311073",
    "entityType": "User",
    "nonce": "0xf475ac0c9c32eee94521b3d3ba75cbf48844523b845a43a886ba1173cbfb8245",
    "signature": "0xb96534959e93fe154d6ec4499b53cd3315d44c19aa3818e2bad27804de2678466744a3a68f926b863b0a63c45c514891d4f496e6b62b50bd95776e2d63cf85a21b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}