{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "672636",
    "entityType": "User",
    "nonce": "0x7c3816ecfbce828cd392b71735925ba6efaea26b39003cbc764035b2f7a36c6e",
    "signature": "0xaaab92fd1e949e7d4f0beaba8bc21f2f8019626339f5592028a42f9ed017b37f33031711d9341b2b6a1e72c96cc9c660c126325f297cb600f8a3b8e149874dc01c",
    "signer": "0x0EBAA07bBFeB63ba11B0fc9C654fD1942EB02F17",
    "userId": "926810842"
  }
}