{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "560525349",
    "entityType": "User",
    "nonce": "0x970f365e0eafd26ff006a2e22ea2c7228d34e631ebd48fb9c217df32d0e6ff78",
    "signature": "0xea59316f3662af991ea1da783a4e81099909c5be9bb9f7550ded3a24cc9c13f80fdb2ad93449c47f8ee8af7ec4b44eece400fa2b6a3b1b107b41e44c94ad72ca1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}