{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xa4b01270eeb93250d215175456ab5db9c9e732a121e002d92aee93b86d56c3e9",
    "signature": "0xdf35548bc4ee22cc558ed7facaeadfa57d586a115eb266a461fcf3c4dd5ad5d0299f4ac2537e5e03c1806ed22f9aee9cb3ccd06c1ca058474129c7e3556079961b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}