{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "254288",
    "entityType": "User",
    "nonce": "0xf24b916acf4beb4461c1f24ddcff7c762240a7c8bb146324b71b0ed4bd8adbd6",
    "signature": "0xd532679844ee92ed0c7df731aacec068d918fa30acca9b5a10c758b62e5d0cc71d7e816f79834bd5122d65ff550b8bf9a3256fe74ea3dedf6b802063875d1a8a1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}