{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "167557",
    "entityType": "User",
    "nonce": "0x510d71dfc203c353081c4faa12837d1aef782b67657a1552d977f80c0bf606b4",
    "signature": "0xf872a5588203955fca5d170e9509bd3f002dc44bf5a5778da46032cec19198384150b454bb11f34ac71a57dac8c6aafa2fd09742ccf2c30a5a30b8cb005c4fd81b",
    "signer": "0x73C69e0c0a50f0E228106C863e362C350a86Af87",
    "userId": "190031"
  }
}