{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "316281",
    "entityType": "User",
    "nonce": "0xf7ef80c40f9f8f3bd7147784da68ca79d84718eddb9981c357769c3c1b2c84fe",
    "signature": "0x322f7d58ee6cbbcc97d74b6b99028ee4c351787f0e357abcc927221e10750fa749381153295508ed05578e4d8cd93a384914a22052b536ba4cbf1bb2f21e80601c",
    "signer": "0xe74EA561439c78F34f4928Eb44ee8Bc5d67c3d45",
    "userId": "781858883"
  }
}