{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322803",
    "entityType": "User",
    "nonce": "0x7c458d4c166b810ccae3703fd1172a6097fbc1ce7d776f3073db45266336ffcc",
    "signature": "0x11cfde577e749a23143ea33a820614d93ead18ce25d1ed27137268165c3328046a327e4674d4e6dcc6e780d428477d8e4fcfdc4d3013f896e0d680e8ab46184f1b",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}