{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138953",
    "entityType": "User",
    "nonce": "0x78ec4b584c41de8b547ef7498bcf0c31d6f322d49c70308134dd498070acc7d7",
    "signature": "0x7b772b5ba61c8a74ddbae34335d812df45f60c41e19b60242578e6898aa9cb9e2f9ac2e39294c3ea40b13a74183b6e979dc2749514b8940aa9c5b7ad010f52461b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}