{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x1cf8da20e3795415c21fc07a12a552a4f70ffae241943746b7e56a7382dab3d3",
    "signature": "0x49f1c689245634efa26e64b82972b2f9fd85df2bf916b0f3b7791a1e43a57cd71ad34332e7b4b6c2b4eb41a154dff0ed03f6e5e880539b04c37fbea54cb1ea061c",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}