{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "224593",
    "entityType": "User",
    "nonce": "0x959bec8d10a6c338ade8771cb26dc0f8128361471369c5f8ead07cdf3c73da74",
    "signature": "0x77ad4399e7b2396083239b5c3430e0a497cfc9b2ffa7bf16703ac54027a97e2f3d56d8ba194ea37a4c5fd6677ce96761c4f2474136676d2c809891bbac1934001b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}