{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136478",
    "entityType": "User",
    "nonce": "0xfbb663f9c302109aa60fe3c2a8aad388588f2f46198d92039af81d805cecf236",
    "signature": "0x3b0a369fb60e100311295c0a3c701891252d561b9943812d023eb2a215d6b3dc2de07ced41097e8f582712b6435e8e69d5ea0065597576542b2bb3ee39b822d11c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}