{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208623",
    "entityType": "User",
    "nonce": "0x67cfd0cfe1242b901152b1f7b19a9f1a42c1f5fefe5f6ae1f61f1b567de0e9a5",
    "signature": "0xf57c571ce534de2fb040d5a1d0270eeb4f66d373afe42535a84543d6b4c0f0a73d4d46ade607c831b093736d999dacdf7d986f5851af7f24c0c8ca5b760154a91b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}