{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x8e4dbe91604d82041cf945229877b5e4a998d173292e545bd4ead02c6c862a61",
    "signature": "0x57d49d2a1939873ce6a251f5144f8249a877538b1a990d76e36a105605537eec031be22b07f0f5f50b0509679b19d8818d7878812f5e26de77758b5e72b2a3cc1c",
    "signer": "0x9436FA87F6c8C3aa9e0F0fc7960566dEeB9e23d4",
    "userId": "2047015"
  }
}