{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870591918",
    "entityType": "User",
    "nonce": "0xc524835f826a5e9f87a3d73489c0323470bbd0be004177bc32bfaed17b105c54",
    "signature": "0x46de6438ceaa115342d7d3399f1edb7e902e701ebec934c035d892a4f44d50422ddf470b561cf15460a45a2bf15616ade68ec482e000fc99a2bedaf431ff92e91c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}