{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108203",
    "entityType": "User",
    "nonce": "0xda05098e13a3018a9684fdb1815b38345a592ea69b7eab6c678ebb72aea8fea6",
    "signature": "0x7d39dd68f7590859597500f5067706c1c8d05d0a6f235cc05b73c33299083870123022e972db880a2c07a9eb13f451a1e7f004036516a7a4f4e2526e345afdd81b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}