{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x0d55f3cf99b4a339120c71afb884e773e56f41c196882dfec3078866fed5c3fa",
    "signature": "0xc931ebb68f190dd77e30ae4a472b91b56c13b10e5490f92fd8053c8fb4c3912429021ba4c77405704cb4933c18a5c3cc6734e57cc5379a8c619399af68e88c241c",
    "signer": "0xCa890ba09b096164ab040247D3eb511DD5cC5f51",
    "userId": "489821062"
  }
}