{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923480019",
    "entityType": "User",
    "nonce": "0x05d3b05bb5038b46cf731b125e4db949d8d121d942b8f5770b013f44df3ee86d",
    "signature": "0x62c1858d9b0ff4325c9c7cc4e95ade91ca853e0752e7b219029dbfd0b469ac2d66f2feacddf3d359a7a719cac8d17302e39e86a84e58818ed251b95eb0b9a9221c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}