{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61721",
    "entityType": "User",
    "nonce": "0x5a6bccd7a02a76629bf2230a26aa9e73b90347ffc8191da7cc62642ed3b1facf",
    "signature": "0x9b06bc6f577e7b8175b7289c740fafe851399575789510a01390bb84627e0e3d3345ff26c6640f5fd09d0b36b3fa6b7eeb927ad265b6179505308f8768b30e281c",
    "signer": "0xA3cEd4452Ec88415B96DE1F0BDfc3a358cE048b5",
    "userId": "387447420"
  }
}