{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "841988170",
    "entityType": "User",
    "nonce": "0x6797c54f84dba6c21692c1fcc12f561144814df8e9baec5b0cecb8791d43b0c8",
    "signature": "0x71c8df55f1a02a90482e4108caa6f343fb78f5d910965e3cefa2d7a7d2bdd9525573cd1e6fc6b9b60f6e7e98d4d1e86ac28d75d7c7b28fa446df3688344e6f701b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}