{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6200",
    "entityType": "User",
    "nonce": "0x9adc4474389c72e55957889489e2699b7d9e3855d3d9e2384ede2f4d291e120e",
    "signature": "0xbdb791af849e4f2e5feb94bc155cbfd1f68de465c639ed0675bf7a48cf476d9b430b491545439e04068752c779bf41e01a55a3aa90c5d162ed0363b8ddb63b8b1b",
    "signer": "0x5617e33979Af319eD3a9a6bFF820d69b7e8877a9",
    "userId": "171261"
  }
}