{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x297674df28adde66b8b684b2e0f47d2c573a6486ee523b6104fad19b3232c4cf",
    "signature": "0x89f07a736d30431b1d23996f247744411b121a011ea4e1b757483d1466a3eb7121a2cc205637dc55f0ab32a3145cd7089f413c9238d6bca21a76afe0771700aa1b",
    "signer": "0x294F540CE80e30CBc9Fb7bEA94F956ABdEcdEf68",
    "userId": "809640913"
  }
}