{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5413",
    "entityType": "User",
    "nonce": "0x9d047baf5f101b9b0240c7695252b957e65129342a5adddebd9199a72345d047",
    "signature": "0x6114c3fc0a4f543fb87f0bac87a32b67439fd16764c67926927d43ebc2d1ab05137a090840540ab01a93864d60f993e1ec4be0fda62caa31983d298d0a7d59f71c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}