{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "672133271",
    "entityType": "User",
    "nonce": "0xac373b553ac883ed073e0a5e92d7b994c54cea637e41a0046ee36c99ae2f2828",
    "signature": "0x54a71b40ceb365ec0ad9f0e5d78a8b41d39760b563899e11f3e60ef5ba1de9b338a7b90e05a3836791708b396bc87c09145721beae29b2e1410381fcd747b7591c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}