{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67405",
    "entityType": "User",
    "nonce": "0x54872be9ddb2af991bd73b8029692edebbdb0bcbf420661d63a65102c6155cad",
    "signature": "0x54cd1f68171c789fe6af528d0c6a05f2f0c07b1d93242475e9c7c7943ffe450138cece47718b3869a25f20429d5b45c9ad4f584e2cf25cf269d0971c2bccea6d1c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}