{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5970",
    "entityType": "User",
    "nonce": "0x5f58f8cad2cbc9a9382332994c7ea591cd0650a8a0f4377b285c1f9094e56742",
    "signature": "0xb184627b772d9369754c637ebec43ae36bf36e29b258096c815fb6d459f5a8fe15c6dc5ff8e25fe03fcfc90e5f801f2e68cf9ceac7bc4c2bb19e2e9152b299201c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}