{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8151",
    "entityType": "User",
    "nonce": "0xf85e5f4dcf9b9bdfc15f664b13f4025244aae1ea55158765e1df6729916dc729",
    "signature": "0xa4c103c1b3f9f5fa5e0ef4c41f12c54fddbba3c925d009905a4216dec1ba340c58dd32ff0d11c7b578a4c3bc7452ca2b0ebdc8cb7460768717748bd05e4789ac1c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}