{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "373173",
    "entityType": "User",
    "nonce": "0x8115c904cdd604385f782f56af867905fdb29d6ee8093e4bb9ca6856c2c31963",
    "signature": "0xef92dd4cde007f1d0286b399a8b237f2edd70300cadd4af9d8bb2318fdab3c7138be4f68706c7c037f42489ba46387b1e88100c31a1b3126a3d20f08ae6d28bc1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}