{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "388772718",
    "entityType": "User",
    "nonce": "0xa746f9022d2a0b7c620e75120f9dbbb32ab907ce334f60cb3b617ecd1c7de7c8",
    "signature": "0x2789d8bbb823ac3ca2bfcf30eaedc8cfa069cee9dc64635c7553143a48c874a43c792613de9b71abfbf446797fef7c317e30d5ad17dc93f4e7c4ad80e2adba821b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}