{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1004520",
    "entityType": "User",
    "nonce": "0x6ffc9365835e23d50bb731156bb775ca4c80455b3bad7e401c92f5bfea3362c2",
    "signature": "0x086f3e73f45e8ac60997da66353966920576d6f5d7ef21c0fcc423489a78c6b84e5d5df6e3d46c5b6189c447b0eaba0218f26f824e1cd937c07546c7093f9bd11b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}