{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "361319835",
    "entityType": "User",
    "nonce": "0x70a673a16704ee01a44fe98ff7bf48b725ba2afac3d61c3dba2053f5efa38daa",
    "signature": "0x413885f518946a7c6778e4dff3d9ee05f2c80437a54cde70a0de47b9703c5c443abdf361352c1812e5f8175a708a212572344898fca2f894ddfce00900bc3d371b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}