{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x902bc01ac731eca5ee80a4b055ab63e00f4bdb838731a04e6103881ac27e7c9f",
    "signature": "0x93f8ceffd9f09bf182b00d1f023fe2f568dc5cf283c508c62dc5db438a1f550210778cda5626da3395e1b867435a88a661ab22c251224903e366715ae6cba8901b",
    "signer": "0x42ad36888200ADA907d907B61D48E2B24Cfa3Dae",
    "userId": "500178575"
  }
}