{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "426399693",
    "entityType": "User",
    "nonce": "0x2fc0009c1c3542d2163f8a7ae3ff6ed2b347c2f70ced3c1c2540406aa6d03f80",
    "signature": "0xbf2a6b1036001b7e0616455430ec3d93a1364b935e27b50d8f568532036a6cfe4a2c80c5528984a3b3ffcf8858c937a0cde512a63f6fde5517560b2b69adeac01b",
    "signer": "0x348df72234CFA0510765B29D6e8911c601858364",
    "userId": "2515"
  }
}