{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937299109",
    "entityType": "User",
    "nonce": "0x704e6da7561037fea380fd274d414349aa963f1c013e555d79f05fe5b91b085f",
    "signature": "0x91ed1f42a18ad5d65e609cb70dc4f6ad2a824d651cdf5a0cacd24e6164fe517d657d51248aacd1b9c92d5e60cb5f15316d1313987e5093d3fb48995c976cf1041b",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}