{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x92b01028ec5f1345daf52abaa44cfcfee3566ca3199410867506815bf66c1698",
    "signature": "0x203fa3235cd8b08b6eecada0e0cc937fa0d7c600c62ddf0f23cb675f71fb352d3e21c2385847bdecdae315068d10bb3dd66f673845bf0630fc51a50923321f231c",
    "signer": "0x0f0Df36416d8B0eCB97310453479dBcead1b7eEb",
    "userId": "61467990"
  }
}