{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "995293503",
    "entityType": "User",
    "nonce": "0x8a77cb020efef94a38ee74bab1019920c7c8443b9c11d95b702bcf670c8cc956",
    "signature": "0xd024fa3a20068809a5ddcc3d50e321f6bedfba521d2251423c090164d98cf0054a6de37526ee6ad51e64298d0dd785175f268e12586d9d01572dfc89772b22621b",
    "signer": "0xfe6022590e48C8eA51d706EbF4eAe799214A737c",
    "userId": "900610030"
  }
}