{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x5fddbd353424deb4d22ff7cba859624ef6d1cde2bb53982c9efd0ad4916da020",
    "signature": "0x189100fd4df67b1cb31db82950ec5c83f170d612a804578d8e8de5f5962d072d34d156b85d25359ba33917f1548af9ccb1035e9826adf9c0b72d46f765fb44511c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}