{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1408945",
    "entityType": "User",
    "nonce": "0xd69a11bf850ab40972db8fc91739885f9f75d21b62a34dc88eb1b8b98617927b",
    "signature": "0x94640491dbb425c1f9bf4d1a1ef94a1d00bb13565b14b6e587625ff40ecdd373407a998903b2278502cff1777b618a7e63db4598da4e9f8b8266323b36081a571b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}