{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138985242",
    "entityType": "User",
    "nonce": "0xe238ddd68a11fe82faebe2c03fa73a0d23d04b69daa1576f597d70f82ccdb4a5",
    "signature": "0x50b6ce9747e14fd7fd4798c809769371b3d9a3fc499ab1e79ba4e5e8de398d2460d24932dc263b345115df91a3139cb66ff764e26725970a97ed4e6d665c69931b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}