{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3915",
    "entityType": "User",
    "nonce": "0xd5ab21066a5bada13a695615711ef838fa893b7aa687b41adfbfda58d1d2fdf0",
    "signature": "0x741d29afb5d55daf733cefa77a7aa8d241231a3d192c4290c5458176fa88d7ed367fc85df43cecc08e6de4675093eb000211c061f6d51c795a53e512c244e1c21c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}