{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343346",
    "entityType": "User",
    "nonce": "0xf392bef7114039c29fcb1622b910e5ea200792092c0e3459b6aecbece823f39d",
    "signature": "0xd66eb83374d6cfb5c6a8add6b2e4724de3786dda9b4279d1c982457f00b16bc139ad481d50a954e42ae1fc45c502fa4fe84930a61575d02bd3a46614c1cd16d91c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}