{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x9c30ed4bb68c956e0d3c2fbdd373c747e17bd00868d411d1841c92936efb670c",
    "signature": "0x3b4cf12ae5518ee96a6f9d8f8a3c8192923614a721a6b0dbf85996c1612a40e437c49101bac218f0269790ab0accb517166d0e61e9284cb0a1a0bc2af5b2b1c51c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}