{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367659404",
    "entityType": "User",
    "nonce": "0xd6d5464a8c26e8953e750259b0e21d7dc2508e861d5a4d725e318ed58912c0f6",
    "signature": "0x62b229543a5e71c02a965c372efe1f19e45c7d2ca918f77b7316574c0a9a031553ee51e52e1252c2e73e001657b0fb943dad4c18d35c7a3732007a2a54b443d91c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}