{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343",
    "entityType": "User",
    "nonce": "0xf827607b8e9897221b545e0e34ba6a6cfdb86f1c43ada5fe00c1528c0d1a4e9f",
    "signature": "0x28e07c760050967e4b9d07c146b9c276c350511610b6bd49268cd756c85fd58937f5341045351bd6ea3dff3c7579030ba8b73d9f98260e05ed81bb38c52b1a521b",
    "signer": "0x0D6F44CaD964C85a5Bb15D8c0ebAEd9f6CFc051A",
    "userId": "142063001"
  }
}