{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128508",
    "entityType": "User",
    "nonce": "0xd9e9ba214d20d58e71f275fb528553010902eaa7b8b6d2e9ece9327ac449b9a7",
    "signature": "0x159457fdbc18823a4ca6c5dd7372c70506a3de401e12f31bf4b7a76715d0fdaa26f5ffbfaf035cbe15bbbbf6885ae9c47cca620f27c91901266ffcb6e98c998e1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}