{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12665",
    "entityType": "User",
    "nonce": "0x85f2b0f309fb5ffb0d442aed09ef9ca339d4470d0da9e2669dc6ee380f8307c5",
    "signature": "0x99fd91f42f5cdd7990764ec01bd470707728c67d6333474f676b8ae4632b92632585f3165fec7e86608b69be183c901eccd8e01b040f31f28ccc1d207a41f8721b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}