{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xc0a8802dbe55f7759e3c22ef7da8f27f33357c94d27f50b4c6a846425bd77257",
    "signature": "0xa72015f57c1fb07f4a6df57bd825116d60b870c3f94e66adafe5a11fd52ceb313045b484b3a1c3c033674a61b209efa4cd15321473fb4756413d078a5f2044d81c",
    "signer": "0x4f24EFcc0f8174B7836f5EBbeBd72AF3f1746E74",
    "userId": "230109234"
  }
}