{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9613",
    "entityType": "User",
    "nonce": "0x2ac3e45e6bd5eb62c7b1f51b93bfa08bbdfaa192d593a9d29c492e74127a4c69",
    "signature": "0xa6d15169ec0195fcde8524d88cd712febe34fd8212b86722860a4f1012861bd752a7c5bef3a6411c07e7e6fb9684898f6173c9bc430cb53028a45e4957b9c3c51c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}