{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "739472267",
    "entityType": "User",
    "nonce": "0x4cb4a73fd2ae5e21fe47ca9b014f4b430dfa876ba681b24b55bebeb1761c11ac",
    "signature": "0x9fe1f94383dec9cce765be94a6fed5af7834efad4d017ab71e6c53bca7fd8e4b69587ba13e15321013fd2e3bb376e8c830aff5faad74655122ef3c53eea733a21b",
    "signer": "0x983B834EEB2c355EaD77E7F76138adb8b56faF18",
    "userId": "442086440"
  }
}