{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x933d5979308128c4ab27bb974b3b22a48cdd574dc0265f24043413a3d956398e",
    "signature": "0xa08298aca1682d38ef48c7d93d0fe2146b3c0467fe210ea8ed4a0a04e4f1e2f94ff6ddbd920fe1ca1ffd98b53c84894a85d3923bb164fa5f5ae3cf622789acf81c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}