{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "840316069",
    "entityType": "User",
    "nonce": "0x44b395152107015c393f96fe7dd68cebd43a8a31a31089606a4407d1c41a2929",
    "signature": "0x8cac330a01d5f89bbe5fcabd8a0ab25bcd75f35d93532d9254e025417c885698042fc933db5bae070a516295bb7755373923b2a11795a692194ef0af225ce9601b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}