{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271210185",
    "entityType": "User",
    "nonce": "0x08fbcab6a20aaf6a3eb290d5662ced58070161ead3d11a4b640b295eb34ac6a1",
    "signature": "0xa38ca57ca1097019e4e4596ac4e414762f3ca509d90982b8cbd0f0e53af608291da3bdb339cc61b3a3f864bfb04f257d9b6482f352373802bd14b8ae965afe081b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}