{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19136",
    "entityType": "User",
    "nonce": "0xa43e2e7c3fe098242a09cf70300c30b49cd1be1932c34d62d0d97d0f7632e096",
    "signature": "0xb536d1ca41962a22e1059365b0f47449ecdd8c9aeca5258af8be8576474302fe1d28d610d67e6ce14bd40a9ef08af36a77e4cc4286b6aaed7173fb77f7c4727d1b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}