{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "762013",
    "entityType": "User",
    "nonce": "0xde66ef22796ac275099310f7c9e0f1e9646a2115f158264a0c22ea2054b86683",
    "signature": "0x6d532b4a4e6a20651b36725a6f041d34b672c694b7b352cbbc5c405a0015ba886d2d381523cecf6608898a8ef3aa1cd00fd9f883ba2fa1fdfc67ee2fa4de6a111b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}