{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4165c1b64246c1217a286723bb9b4c3434fd9cfbbfb85427915742f157189d71",
    "signature": "0xec022bd4d9a3a267fdf74e792e2215b569379d95f27abd3094e39705f316cc0722c8c6e57c0e5df13ebdeca2b8ee163f09581f230cbb97e5bf7deb97e5bacb451b",
    "signer": "0x3e0D6A2408F5c21Eab6D31A5F260b7842CA703FA",
    "userId": "930696642"
  }
}