{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "759473",
    "entityType": "User",
    "nonce": "0x22a0185d00352d5e8bd2a8a48fd22e38d4a3a71a2ebae2a98a84f1448a201099",
    "signature": "0x2d8d7c9825bc5d4ee6380c4ca22bc6312da75942d0334303c59302b4b1924a5656c5348ad84fd8d04ff75ac91d7c1002c768f3bea78cb407121b2fc77d126e111b",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}