{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163449",
    "entityType": "User",
    "nonce": "0x0d1cc62b83fe51e8001aec448d761140ee89290fa512cb82cffdcb8057cf250c",
    "signature": "0x6cee8b832e83bd7161a232f21c105f9a8653b5fa71f228d91f77cbe2e6bdf8f84031522b7dca1e7554e1938f65769b606235306efdf38bc2cb6eed95090cdb7d1c",
    "signer": "0xC14d01Ad1443F7623B61668BA3E768ea7Ff0666F",
    "userId": "321158566"
  }
}