{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd00eede1df31e0337e7fb72da32200a359815a43201a0723d550566191b5fe3d",
    "signature": "0x1e49f08ed2ce60e7fc0c2d9fe8faef4ccd3fde8c70b7554851d4e5c652909e364661c9a768d97bd3dd132a5a7d47981d22cf46239ddeb9d3591e4cda24be06b41b",
    "signer": "0x961212f597dF8b6F3728265ab66057537906b572",
    "userId": "493803247"
  }
}