{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "393",
    "entityType": "User",
    "nonce": "0x4b98a60bb0fd65a70281567f31bc35748ce737a9f5b71d1a501ac4273a13d7e5",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}