{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "568518925",
    "entityType": "User",
    "nonce": "0x63cc2dc6adbdab12596e3d50435a5b33c0da58e7c82e66f04ecd3be6fa791e46",
    "signature": "0x30e9311878de1a16f324c6f28e547dc42e1eff84d765b36731682468b0983eb803643debbcc1bd6071baf69c25a3d794f49805141eb9fe6ddbc0c194d03087b01b",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}