{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x81cc205ef29854258f36294ac1a24c135c18eb99bad9b32e3a20ee8f016b9366",
    "signature": "0xc5111385550f61c95b3f661ce59d2ccb02d6b57937297e3f5a5f2dda5840041b40c3f333975b476c50e0e3ff1329f9b8bb32eb332e9816c6b73911cff31d58081c",
    "signer": "0x5797b066E3818C2d16862430ec442E3CFf120bBf",
    "userId": "428405094"
  }
}