{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16782",
    "entityType": "User",
    "nonce": "0x4088145bc718535b2df3ecbe48fa80f097badad7f59d92e42d621d3af5843e3a",
    "signature": "0xd436f4b2d07e2232e5564090c89326827175421e283b28190372763167b8de212ee6df6c7d308e5b02026aec3e4defbe495e4d0a611350028ee2f77259f17d281b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}