{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x59d43239616c6d65df56bfd2db66247f367795f03e3f45826abeb7ff1824ba1e",
    "signature": "0xf856c74ef2177a63567ec72578b12478b6fb8e2b5145b6c24f0eb260f7db25cf5cd98ca7499accf38a9e98126acb03633a3def66eeafd6e92f8554934f1088a61b",
    "signer": "0x7B6f0bacDF95a163C55115144e11510dC1f4A036",
    "userId": "196227108"
  }
}