{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc3331061669f14ec175a6de275ba9fc317c1d78d8b8ac8dbbde19f8d2d8c5f02",
    "signature": "0x662060d3508f990e15992841cc5a85619909e861ac1b4e0d331ee26152def9336d9540f542b6bb37965d53c00020c84c655f7cd453278976902ba61439793e3c1c",
    "signer": "0x47dd9a29137DE505095fc0f45e17E448119011D4",
    "userId": "44857520"
  }
}