{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325935",
    "entityType": "User",
    "nonce": "0xad11fe0238d66435f654e74a7178da8b1856fc3b57a68ca4ebef588075ffe9dd",
    "signature": "0x8b95a1b2f20dc0a4e8acfed2ae77e5e1a4f7f807d8756249d26af39c4dc3af732ee6ad99bdf2dc5312481f644f4cb85ba9e6ed77096150b8649ff85e8e934f781c",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}