{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11404",
    "entityType": "User",
    "nonce": "0x778b0117083ebd118a3485073c05ed6b9ad06f8ba48b3be68c3423432917beb6",
    "signature": "0x3d85abf28c96f2648ff953fbe6ab7119e208b3c683016dac4859e17a236299895caafea3d9be8258e597ceb85a58e47254bd565e23fb9fcfa0041a069d41f5231c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}