{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "649996433",
    "entityType": "User",
    "nonce": "0x35d42932e419973042ae6d5e314db5fb8b03cf5a0931b0ac43e592dfa7a4960b",
    "signature": "0x0ebe8b9dbda3493cac1af038b64e23ceec63692f658081ddf7aac920fd4f578c64eb964b1a2b00a8042591a7c874bfc92c9a347d89af009aba105f6c1b8561681c",
    "signer": "0xD9254B079e0e1571E56512C57188F2eec899054f",
    "userId": "854498636"
  }
}