{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0xf7d673a9d1e0218803ac9d58fdfad82c083e49c8a823707b03f21ddb985400b9",
    "signature": "0x8aaf68feb877931c660fd45bd380459c6c3941fdf3e6c3d60dd8ddcd580cee68131e9666f151b05d3331b2b6b8a088ee64a8de4e4e1bc68b4d91eebb87bc546e1c",
    "signer": "0xdF9487164dE2249ca747A2fC5A6dbe6D6392F510",
    "userId": "308281501"
  }
}