{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136861",
    "entityType": "User",
    "nonce": "0x99a8e08eb53fd81b50a00c5c69b0ed32fd8aaa49643a7ce32d3bfbbfa90cf07f",
    "signature": "0x5be16b7c3af313a2aed6d2e1d06ac1dd5ec1b3591c79122323b468d2308f01e64e340d42f4edca6437329fe86a691522dda7556a73223136a001cd57115208601b",
    "signer": "0x683652A4dd5A3C6d1b00eF3f7878768e3a78494C",
    "userId": "310841670"
  }
}