{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389177",
    "entityType": "User",
    "nonce": "0xcba2ed98f21ba352b440b4c19dd6131083a7b1c37002794178c9e6b5e6010735",
    "signature": "0x3a08dcf7faa3e3023a1a7b4b7802f01bc88af14788ed7c064409b287a22adfb379b5feebe31d956b32764768e76c21b03834aa495e6bc50f4da0f6653aab71c31b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}