{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15320",
    "entityType": "User",
    "nonce": "0xf2c33cfe7414ca39c77d376d8b472ed25dc990f92779d6c5b76a41c68b9e52fd",
    "signature": "0x9e8c5f3f8cc342d6683c241119b9d3f481ff1120dfeb312f96bc980a93e8ccf1030858f9ed429f10307690be0898e462a8d1a13a5aa01d5a0897f4fb95a517c81b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}