{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbce030cacdb875b184ab89ad123cfc044892d100fa9a1e33bc652c3e32aac0e0",
    "signature": "0x37d96e5100a052cca8ceb9f15ccc5bd05b37611f2eba2b0cfd9bdd61eb712adf2c641b80509c7f83655ec3f3de06022fac7c471672e55761e4221cc760d6926d1c",
    "signer": "0x7851719067C51aB77192b66F1DE2448b67646061",
    "userId": "393279285"
  }
}