{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xcfac30d634bfae531d97dbdef2047eaf9bba087d60eaab2f5d4f0028dfc97644",
    "signature": "0x8f22ae33ad30f60eeccc2c7e882a444dbb57c8bf99f03518e4acf3ceeb0f44026cc92e069469d5922cd023f83b7c0f94004abd0bf6e954807ee062830dd8d4491c",
    "signer": "0x52Cb4b468190D878a90e6d678064532b2405fBC6",
    "userId": "184931764"
  }
}