{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325968",
    "entityType": "User",
    "nonce": "0x28bbfbd3fdcdf7d1495982154242fd6444a5e37b15a39f90e58b078fa2e664be",
    "signature": "0xa41ec1625519fb8428a715dd589b05e83f5059fd30f9810382e7174830e9255b4004950ddf7c9f4dcd2111b17ce006344285c060e1d97b5a19dd69153bdf3a981c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}