{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55875",
    "entityType": "User",
    "nonce": "0xaa38a5547321871364169a1e36b647a989819ccff2e14d0cc0f36aa129b69918",
    "signature": "0xd57c83effeb5966ed77c4692a9933a2280b14d65e341ca25370f1deffe38789263d3abf3d966967e73aac843c1a1ecc922348a7c7cbf03e70aaba414f683d69d1c",
    "signer": "0x4B8960b62360073E2472A74bfbd80138387fE211",
    "userId": "86339"
  }
}