{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63945",
    "entityType": "User",
    "nonce": "0x24a9b778377605a3a6d25a3b4a2bc5d745a79ed52344e7d91ea1f0e0d527ecab",
    "signature": "0x5310e05a1f905737db0ab008131d4529e2b8a42c34df907f719605c59d291c9d4953ecc277bc49e86d92f0224d3a92f33f1bf0cda94ec972819e5292b439596f1c",
    "signer": "0x8eEbaC0c8b926729F8Dc288872A07cc9d08d8d8c",
    "userId": "42402405"
  }
}