{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "149030924",
    "entityType": "User",
    "nonce": "0xdd4bc4e3385f524af98576666a402097a7ac285d907d999ada36b890f5d2ea2e",
    "signature": "0xeab5310bc9d5aaa2bc2c570934975ec4bc3c64543a868bd491105bb66547a000762c52a1e5dbf699dc18558afb937698461f5d2afe7719e32fd68b8507b88e121b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}