{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "865202242",
    "entityType": "User",
    "nonce": "0x681dd38a20e7eed188bc72dc6c0d74432c2454f8830fb58269aa955dd4d50d5d",
    "signature": "0x141e9a4af2863c804169c71cb61ca836ca6a20f8fa577a413130915c289f93b26dad9f22a9a0efc341f3713431d908a83ec0417af7fca3c92af902e507a7eca71c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}