{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75740",
    "entityType": "User",
    "nonce": "0xeb02f3adf6e732f9d65a61cc666201a3ca1480dad0e7603bfa18b5a8f3bdae26",
    "signature": "0x4cb5d99215f5c9b9d0885b7ddee4013404c69a31177dafc3dd06d9d0fa5f5c9319b87071083636cb3b996e6de2796f1f64341fc384940d041e0bec215d3087ee1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}