{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7309",
    "entityType": "User",
    "nonce": "0xe51400f7d3959124030a88395b7f911038b95f2291fbcf1461e5c45c5b32bf90",
    "signature": "0xa0476ae003e5f1f2af330da1b2f6cd15e1c01d0cd02a4c638ba52f3960e878d55c43c1f9c3aca32c8d4e743c75c8a18151d2e13f7241577b9240d16e4bf0c7911b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}