{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x5e073100fa463bc2a4a9f3d3f59e07a0b08429b49f728698602300ff3eca225b",
    "signature": "0xd4ccdfb290c657ce5e10829bfc93621fd792fa6eb365cab62aeaab88c9d46182163be702f573bb9eb8948cf5f92ae1725d4577878742ac9905ed978b61e188381b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}