{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6f68e0f95961e05b493c58e913223d68c4809c233e9ba77f71d892134faa602c",
    "signature": "0xe91f03387a664f69e67ebab4d5f02940b60a0e1f53119db6f9246eccc69e73b4318cdc7752e1b6f0e84065f5342f4b5ca23b7af771a8e6424b5e77aa47793ab21b",
    "signer": "0xbAddc7a59cC8A05c8c6b0Dc8B3621B082f8C98bd",
    "userId": "562834680"
  }
}