{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1967218",
    "entityType": "User",
    "nonce": "0x444898e2a9b7fb88dfeb847c81db5599f9e1958a9b2f4061571b01407063dadb",
    "signature": "0xd6e6b463436e20eca71504dafe7e1440d5cbbb34d219ea38703ba62897af240879a36bf208b125a53cdb58ed149a22113b232f4e96a421e33ba381c8e71b6ca91b",
    "signer": "0xca7c61d7Db568b81B8A952B917F45dd863B736F1",
    "userId": "144109"
  }
}