{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "284269075",
    "entityType": "User",
    "nonce": "0x804daf11965085b31b98853e34b51fd2128359fba50548dbc3c99b6f5a304aa4",
    "signature": "0xd1ed79ea9a09129fcaf207e9a6226aed3ee46b9830fc54410c4dbaa3d65316c36f5c996be24314cfbe9929841b0b48b01c4c9431cdeb498c7ab770c4d2e945ec1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}