{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159374",
    "entityType": "User",
    "nonce": "0xd669985f34f1857c69b7e6cc0d33359c000972dae8c72ec7b66ee74add2d6adc",
    "signature": "0xc11a7098c804f7ca8be2be50a7424696185446399c240b5d589260cfe93cc5835d2126bf06d45f8bcef39b63b06f02247f20ce4628d5894ce812da63d04d64ac1c",
    "signer": "0xF5C198A035503518a579b15Fb9eE834F3b4b1bAB",
    "userId": "765691673"
  }
}