{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451504",
    "entityType": "User",
    "nonce": "0x6ed608a426abdcf96fa9fafb7d3c12a303249794de5cd61c9dadd60e758485d0",
    "signature": "0x0ea6309139c3685b5595977114f6f4209be30fd0499940768bc5cee3343e24c13e001c39c468c9f4670d03b2ded6e803a9cede71a9400164025eb9ec1f5850561b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}