{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4198",
    "entityType": "User",
    "nonce": "0x101cc7a80b3a73a43c3815cd0aa68273993a745c2ab6f9a081fe897b6c516598",
    "signature": "0x51d4d90bddfba1be01d63041b133cd725b9b27179c59e24c77a617444b3ba941687dff079831f78b7b294386e0ba397b5a608de94aa65912cd8ae4ffa496eecb1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}