{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16494",
    "entityType": "User",
    "nonce": "0x1fb7279fb38434f6104cdff421f02111e2ce31589e85a7f784cf68287081d1eb",
    "signature": "0x88fdb7619f626b7c7fbe6d127e80f622c6ef3b4143110b2f2e4f04a98bff1d967f925cafd3e1dd453869a4aa38189376407c1baaba03a3855c6390ca604823431b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}