{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "321366",
    "entityType": "User",
    "nonce": "0x1a6a1f90ab04472a03f1e108d5793134cb0774244b0e1468fd60f259326545d9",
    "signature": "0xa950b7a4ffb1c0a2781764feba5f535ac311ec11ceb48f6476edc15b2267f6e0109ba360fca8040b30dceeed8fec818153d1dfbfce43d95a78d2ed9959aa3a991c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}