{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342693",
    "entityType": "User",
    "nonce": "0x5dd6553cfd71987236959af4edccc890f5f64760e95d8011d34c231d14db3fe5",
    "signature": "0xebeaf936b02042e1dbe9be6da36c12aa0996bed50bf0eb0d72c8d95ae8cab54c1048bfe7679e021a7978fe8b481e62263ccfbc2e3972f9371ff2933023b566f31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}