{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59868",
    "entityType": "User",
    "nonce": "0xc87868ddfa7296a0f5778820cd643b5a0e5851861cf4f7cf0c31c7dd0e66ccf1",
    "signature": "0xc44c071b9a1a94b643fd9fc7fb512e9b1ce215d604814265633e5dfc67bdbe144309945063bd6593e351d7929a8ad0d9879ec68949e42931ad418b2bb4440ff81c",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}