{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "957873025",
    "entityType": "User",
    "nonce": "0x9f7c448061bf4b90b1f5d2689c4ca3e77d2bebc270eeb49c87836a677ecd9abe",
    "signature": "0xf1cb20141edef4d6d2d333b27dafc26d97432e59b473363309ea3a22629470b40746520166860a29b835922812e3ebce04870b4aebdf34839462898be8283c4e1c",
    "signer": "0x1D0c500EC847246923045cB0a285242A93723f30",
    "userId": "302385956"
  }
}