{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37158",
    "entityType": "User",
    "nonce": "0xd46a28b7619b2bfc6e9afad64bcd77040b2cc917065f86ff49d4929138157757",
    "signature": "0x1e1450e5887a33312f668a6b16b40bc7e2d13c84b2d43ba52a82df10399e94253aeca64ec44a53cb2304643c049b68ab4a31a83676852404f37c0088468fb8941c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}