{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172521",
    "entityType": "User",
    "nonce": "0xb947a5457627e0e62f11e064cbff8d710db9c349b159071450b771cc42956c01",
    "signature": "0xa70daacf26f977ba4834a076e9192e5951b90d4ef53cc5352fb847b9f654210b5b7f270872e593a6ea45a45e4b27b7cc64abdd98daf5c60b0a73bb969a72df381c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}