{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2565",
    "entityType": "User",
    "nonce": "0xd7ce40e94ee1ee3d53f41dec59adbf99e0a8e7660e8c1fd5dd31015d1d3334a3",
    "signature": "0xa4ef1a1b60a90f4f7ba1bcfc97b8cb708ebdb528d9101aed92876043ce5998103e6c370dde0bf5117a8ce3deb721d7f533597e24ec0f30eb0c2d72656ce4ed3c1b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}