{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0x1458b397df5d1de47bd55680eb80e84040718a66a0d86ba0e493994a092df878",
    "signature": "0xb39fdfa97f4ef6e04ee8768b200dfad4333ce180c4250e8139624e65289752503bb3ab725578e1215364d16e23958e4a2d5e7883ec856632912b8a250672d3dd1c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}