{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaf768be1195bb6de3ab9c21ab272b681a63c3c05bf0911f7a2808d037b252cc3",
    "signature": "0x7353baa41f766fffbdaa9cca1627ec9e4377429ca9369c5e882253c7c9fc9b5a52bc689045889f860b34afdaed18b66baff0bc41dc30799eba020b9cad72771f1b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}