{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x2ea0dea6c1a2181c5929981c61acebbb1ff0abade1b5d99cb4de16b2df366475",
    "signature": "0xff610961e80db54589a8fd88e23fc224f48aaa0810818df3f4a9b3eba3bd3f1d402b8eec771ad796a6e2b4f683b8a9a5c2063559f6e9a50fb594d36e2693e0411c",
    "signer": "0xc8b59C26109BC380ABC47eBad3DF1FB7d6aBf13C",
    "userId": "37821039"
  }
}