{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708035526",
    "entityType": "User",
    "nonce": "0x4acef43af145b6fc8121834be1055988ab34237dd94b7a592b08fb13cb58d8e5",
    "signature": "0x742f72f380d3f65548f08f8717a7b36730b260eee51af86135665598520a830b771c3cdd1f7d042982763ccee40ca383e4866caee4d582361ec50b21cdbcdc341c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}