{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728570067",
    "entityType": "User",
    "nonce": "0xb21412ba1ec58d4395bcde4464bf39c09396ad3bd5dd073c1efba55271b4c000",
    "signature": "0x1077850c00d96da4954b8101994040f52f6e19d5b3629624660faf9a59eb58f748cba60b1e5c4ec59ec3ccd440d03351878a7e297ec5c19c6c61be195999c7bd1b",
    "signer": "0x922d8e0Ac7c940Bd8EfbC00F10B78060ACe36407",
    "userId": "309139"
  }
}