{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0x1cf65bd552cf30d638aa1ad163c8d4a9e8f288778b075ecd89cf7b4339c47716",
    "signature": "0xddb6bbfd14dd33502663e61e84a22aa16b2d4200f14de8582c268a7f045965376bd7ce5a54f14764003f48fe9a6b1704c646739be5686d9ac57c8a76f06faaa01b",
    "signer": "0xdF94159720AB889b4D53EB68Be2E4869f38b9eFc",
    "userId": "863573949"
  }
}