{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735980234",
    "entityType": "User",
    "nonce": "0x4dda693d48e3a5e2673c8efbba5af3c4512b7b4ed844d828338552bf68b9b74f",
    "signature": "0xb630e626c66dc1ef172777c30e769c8f2a0eb1a896b30f498d1111da9857bd8338264f32a4f26d8630d2850a47b5c5b5ff56876746e80ca00dff98f7741486111b",
    "signer": "0x19EDB4c1a8740c323f6e57B80F3422C01875289e",
    "userId": "390804"
  }
}