{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "731526",
    "entityType": "User",
    "nonce": "0x99707b34e58c0d2400e61172b2d9777b524007e90c71cef06a60b7f94e5d9d7b",
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    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}