{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328108",
    "entityType": "User",
    "nonce": "0xeb9019582eddae9b7813107f60dcca4cbff7090a60b05cd5abbf60fe34ad956a",
    "signature": "0xd96de96155da05e101c25326a62a841b21756665fe914584789cc0154e873b823c8c2f10340aa790f8e0317b8b627a584cce27aca704a226a30d99c6b785be891c",
    "signer": "0xd648B38B61b65e4F8df57D4EE65560D8DaacFDb2",
    "userId": "277314120"
  }
}