{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "393620456",
    "entityType": "User",
    "nonce": "0x8cff8de526ce8d087ea562b1a5a9b51825bc060865bc95be89cab522e20b996e",
    "signature": "0xa84712176fa823e1b8f53c7d8cee7afb0e454b814095c9690db74707d2fe986b4142c8871c89ad45ce018bfc1b2e608d787342018b77fa34576fe46a6caa923b1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}