{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "983568397",
    "entityType": "User",
    "nonce": "0xc39824c07e5201e68521084f153f485f9a45ed038c88cf4ca4d314aa2de0bcf4",
    "signature": "0x45b112cb5592a7d501f7628fe18bca36b07edc9e133ce7d765ad278aef0e727573ab40dd784011302d3520e0da3d16b544401d84d4695f13f43a0732e2ba722b1b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}