{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xec16f65fe5f610e5f7af3d2b48872ed436ffbaa8b4c3601cd8f3c189c709e5c6",
    "signature": "0x90137c4865f0ada621ea5f5d2aa9779f13a559fa023273bd5093493c2a62f04115112ff3306084e9d9a426753d175c04e6cf376f7544f9fde0e2e1831131fa121c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}