{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa1b62eb066dee8dad3eabfadca71f5558ecc9f67d59beae7f42817bc378aa269",
    "signature": "0x373e36c7a096da7c878ee841d326cce461616ddc1299e863f1292921acebce916d2c15322d724e6da5fa3e7ac6e10601d98019aa79f8bf4b6e8ae04170eb00cf1b",
    "signer": "0x9BCEc58987f4D9dA548362DF974dc51F726ea53E",
    "userId": "428424994"
  }
}