{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57757",
    "entityType": "User",
    "nonce": "0x65d3b78ac50543c783ababc1ae71fb688fa49c146ab40a3591b6c61432274a3c",
    "signature": "0xeb8605e2b93200c76b87e650c99edacfcd1c4669107440c807169bb99766297a339281b25256efad998d9e92e106e2b23452ee887130591ececec7fe331ca6331c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}