{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50264",
    "entityType": "User",
    "nonce": "0x54f42a554e31ca6db382c9ef2a3cfd446af37a7982fcf5a4a706785ac180b756",
    "signature": "0x5d2e379ad99bd7f16a5969362273d06e829f19ae7b62b86fb15f21d0f217726f745909146703e5283bca91cd50ee810f216c2d82ff23aecbf302b068e48252201c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}