{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "484365174",
    "entityType": "User",
    "nonce": "0x218199b959e253b53b1d2a5f63b859d7a62bf94eb3c45a2c3bc0513d5d8e90f2",
    "signature": "0x6afb1558b667dc794dd0da0eed50c2ed2011ee1fa0d2b61c272f59ba03b447f4130a51021f085b8b5e91af181eb7d5ca275dd998fa13fbc1322d9ac1f74d99f31c",
    "signer": "0xa3C91a44f620f0b95468bEC359f89edb95AE3cdC",
    "userId": "904405512"
  }
}