{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217588",
    "entityType": "User",
    "nonce": "0x50d9161db5c235d7970dfb389181894bde2ee2f193052cfd86573d7c34a2c63d",
    "signature": "0x4ef9d73963224a3f199c69804628f4d51d215ede14a5dbca6a18398d4914cb6e7a9229a5b12f62557e76ce33c3d05a2bd6e1b23f13c78ffceb0cc7a756245d2e1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}