{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153836",
    "entityType": "User",
    "nonce": "0xe619e2ff8f1dd197439e471ccd55723b169d557b9f40520a7085d2fb3546525c",
    "signature": "0xc63ddd48d4b3691796ef7e2d3e39d6c104c2f0535837f4852959d94dc8f42a1b10254c59696ed173d69d9101c455a65a9d92082aa53641f6439334bd5fda7c241c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}