{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x7fb75b331f2a306301585b370880e451a124a5ba3be93a949caaf2a5599ab397",
    "signature": "0x5337c6f944c443b88e85638367d9a6025b16fa699f8192da4806b68901e4a9a05ee5d489ce88d4f81c39a9b81a9b999fbbb3d4337b37ee825e1c0007364700271b",
    "signer": "0x4bEB7D64408E377BC0cE5706956846D437acF8BA",
    "userId": "147968817"
  }
}