{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x77b2b35ac5a7af3d40c3621516e4ab149dccae0924d679d27c72b822a8441876",
    "signature": "0x7f7f4cb849c9228412cbbdab82a6e5fe9b87cdc7f1f72277d56de0bd63010384627a50ce9ab8c2d9c27969b4c97018f82a61d3d18c687196362d89c6d1a894441b",
    "signer": "0x4156998604759D925d749f871A51d24e25bF420A",
    "userId": "699215290"
  }
}