{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396607",
    "entityType": "User",
    "nonce": "0x38df6a36a7873d098b218858996e0d8f4168123cbcfc41c8febaac378e4e64d5",
    "signature": "0xe0315bd649ef3a6b6253f157adf1de82b0b3e59c7ceb8c77565f00ca04da07ef446286deeaa24524684debb1b4f695a46c4723e94e1aeb63131a4dc417284be61c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}