{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20357719",
    "entityType": "User",
    "nonce": "0x911717a28f553fa84350d192f6dbb26eb5fc9b36567fc84f8decc9a82d2310b4",
    "signature": "0xfdea98899814a6973fe2c25589b6f2bc4fb7511549a36cd16008bc4b1163018676b8ee132639bd349ab2310882b223756b93b87d334e81c46f44bbfc5a41bb131c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}