{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x93b9f6832cfb83a34b5943f78638776629495a3f07df32278e54114c89956780",
    "signature": "0xe7ec21834075f6ac48368cd7ce257a6e4ba22169ba5924a5155e4e0b5527cd17671dd40997f2b58f5386a1c7d843fcd236e3564e69e36d7534cb8d0e91a6befe1c",
    "signer": "0xA14f5dF620E9B04F90af9b039d3c38167aA90b2A",
    "userId": "648437395"
  }
}