{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x68f5d71ac3dbcd3a3129432f9b13c26c3f020de9b68fee87d04d7c30fc8b90f7",
    "signature": "0xdf4f1dd3166c1d883252845ee065ce981ae7768c87cc319a1c37b1a1a655ae9f4ca0f0a147508dbea0ff228af764f516c018717554bf7f70084312f8de1e63351b",
    "signer": "0xf5806BE475bF0791a138f4c391459324F07ce2bE",
    "userId": "424450069"
  }
}