{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755263",
    "entityType": "User",
    "nonce": "0xdb4a9b3ac8085620a28ad65708e3b511a23a443cd9352962a9cacc25981e2ca7",
    "signature": "0xe32af80c82ead05acd75690add6f8c3e7ac003dcd17779ba0f820fc2aa671f296a5c370254a96ae7314d2331db67650db447901d34a77240915f0359ed9513291c",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}