{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49269489",
    "entityType": "User",
    "nonce": "0x02f6112d2baab784d4a03fb72fc4e541275e4e0aa275193cae9d71f623d74710",
    "signature": "0xc8bc333b82757c6b62b3b83de68b6c37e7baa4484b6939f7061fdf9a892f32717fea8a9076edfa8eb44107395ee48b3445f735c755e63795be825fe2b670cca51b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}