{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x866a531c32ada6fbfd1b2bdbc7d9690f4dc1456e9b0db6343dd5427ea12998ef",
    "signature": "0xd6bc305d42029bc41f70bde4f9c916bec94690b18ae482a9a1979014472af4677dd108cbbf8a3ab0edc3f10949fd258f9b35091118f9665f8502ed726bd37ae21c",
    "signer": "0x63E76957A995abADa87f8a6B94b1F13F0939696d",
    "userId": "780883329"
  }
}