{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8641ce79241909e0ff53fe47928f36a200bb7b9a7ac816dd4c59160e7f60a6b7",
    "signature": "0xa112c1f067e4e00071060e1fff46091df3975fceb9f364b68338d17d490525dd59509570cd9fa6b045c58bbecd40668801ccffe19774fd4f742389aa3719a5781c",
    "signer": "0xe800D2B1218217A292BdBb2d27bda3Fb4Ff719AA",
    "userId": "308368436"
  }
}