{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396953",
    "entityType": "User",
    "nonce": "0x6497098040d7485f2ec209246fd4342ff5a2347b5cca2836239d593c0ac35c61",
    "signature": "0x0e82162d83ff5390584c5c0bf2f987ead1fcb27ddb5bbcc97c35ee7d715da2ba1e2f49d98d87efcdb25d6d94a3d43c4651a08e86bbaaf9e33134c7995c6a5e441c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}