{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x680d6131ef4252bf269fcf5e20b16f3c556099474a8771e0fc58478a04a966e3",
    "signature": "0xdbef2a9e9a5f4a3d37e3ba83389982e727b1396839b74dd8c7b3c6c08da1485d08fedbbec383d0222e4e06678a9a8f85fd5ffb5d1672cd9008edd9e2e7b757261b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}