{
"manageEntity": {
"action": "Subscribe",
"entityId": "383103",
"entityType": "User",
"nonce": "0xc131f0b9f344960e4a73328117aac1c0f8dab928bcaa756b6abf5b065a783571",
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"signer": "0xB37e68c133ea69671cCAC0650D43A5e87451094c",
"userId": "513109515"
}
}