{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc3391675d279cd81ffa622efaddf1e63ec94a6dc87232bd7be307fe4c1c72453",
    "signature": "0x7b941426728ef0c7c20d8467c28686604b1cc274f9ee5a5ad24f2874efb08d405bbf05a6fdcd340313e1691942843bd8260416f9189be2f50dfe11ada31ed3191c",
    "signer": "0xE46065A6FfBA098285D7bDAF191AB891Ab19085c",
    "userId": "247933491"
  }
}