{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125737",
    "entityType": "User",
    "nonce": "0xbd46b33005db51e9757efc562735654f07af9105de17ab3fc5b39b24fac71c0f",
    "signature": "0xc1284f21c2b00f4719f6132a054d0a89529b071ba09db533e505a4953bb5ee635f557f523f59ce1cff80ff6c6adc512ec0e2dc010d205750d06e5c041b3576751b",
    "signer": "0xc28F39d473d5C4cacc612630A8798a119D1Bb506",
    "userId": "901788935"
  }
}