{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61853",
    "entityType": "User",
    "nonce": "0x9878a07f5205a3089fa017adf730bb511af10f4c31d8003fc20f0cbf8ce12dd4",
    "signature": "0x29ff5f107daaf78c754bf01a39407edbbcbd0bf300854c66707cdc60b81001141a6f175450c4aa6c906ead40fbfe4059b7d005cca2ec20c58ae58d3e0f4355741c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}