{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xdcfca82a022e60a40cef025e9d0a5b34649b1cb5e8b025f67f9b0807120bdf4b",
    "signature": "0x2c9e171dc3f7abf7444b9f546112259c1b1c1af3ef8c914be5562ee7258626be3fc7ee592a82ce7b1db50cf206741cdaea66001bbfdd4780439cc6805c0f5c511c",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}