{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353083",
    "entityType": "User",
    "nonce": "0x17f267326e8d12483d0a2b080814ae52b3f32bda689bb4e7fd4680fdb4303521",
    "signature": "0x6a2851f803d6156e318826ace91feb329924150230a96951d0f02c075c45a7171db1a5b65505c42135029d37e6e7f5c0eb2d3bb048bb0c24d4e92bfe7258c6c11c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}