{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa9c735f8d0cb35e423665fe47e25b50dcbad19b19b83774abbff70434bb7f2f1",
    "signature": "0x9e41ab979191b391c3b4c60a332a3e9b4d69c68c04f6020c73ab5bbfdd42e44543c8e82bf67a2a3d38abe9cfe63236308db1be7c15906d5ad88600b64f487bb51b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}