{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xacfffa775330b32d1251581de50936e439db0241085542817a7bcaa53addab52",
    "signature": "0xf46bff731f4d0fdb71f0716b2dd0a82fc4865a944439c13bdb954649758d3c034642f65f9268c2952ea283be86679a3cdaeb9762d01801e42c09121f1faf654b1b",
    "signer": "0x299152d1Da026F2423F26B629d4674486c5c2Ec9",
    "userId": "669063166"
  }
}