{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951886446",
    "entityType": "User",
    "nonce": "0x8ac3c00206fc8fcaa74bbffb25e72e73884b623a3d6020e3848fd48c3e70efd6",
    "signature": "0x44fc45e19c0d304474a2e2f22da1731b31f2f758dbb49b5ede83eccd8034d1f33a81c856cbab2880dabf85638acb64e82de0c8b99e3cdb286fdead81a16bd68d1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}