{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7243",
    "entityType": "User",
    "nonce": "0x32e22c0f897fb9e4ce8011bddd0dd3940b6f25a4e61d5eacebf3536677a172ff",
    "signature": "0x13b1549273084e6f0ab2052e55bc302a6f2cc1154d65939a188e7708906f01c62b228213a586ff685db66e8c6fff2ad5dbfcacf356d51a5d53912a3e241226421b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}