{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x15f298e9b071a5aa982c7da9ee4c3cce599aa3f199e5048d990120df35dae4d1",
    "signature": "0x693648b449edb8ca88d7320eba0f3d7fb769212eea6bb45488d559a08568af29092268d24489425062aaf242514730990a11f85715dbf3ac8b8d994ffcf7cf431b",
    "signer": "0x0C870078DA27a23974490503b46f9dcE8b1f6F6B",
    "userId": "657360643"
  }
}