{
"manageEntity": {
"action": "Subscribe",
"entityId": "728570067",
"entityType": "User",
"nonce": "0x15c035f9be581895163d8ad05a2a5920789d071cab3fb94399e6fb49db6e33e5",
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"signer": "0xBbFC3A509492613Dc7b23699f02EB6D8243C9c8f",
"userId": "126963305"
}
}