{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1830207",
    "entityType": "User",
    "nonce": "0xe3ba394f50d3c464e2318ee59cad396b1b7ce22d241c377cbade983718d88bc0",
    "signature": "0x6337abf49f4460b4aec247727de2957f29313a2c9d5746cf8a45b54f9931dc505ebfb976295dfb58d6109afcaca00ead0a591383f48a30b7282ebb3cde0893301b",
    "signer": "0xb9160bee52F73DAB98D7cB3210d24Be59194CaC4",
    "userId": "319969"
  }
}