{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "127964526",
    "entityType": "User",
    "nonce": "0x1b90c5d0570700e57719bc69d487ec3386b60052f65dd4a93f50ab3030b570fb",
    "signature": "0xb1fb2cdfa8208904eb7cf3a75aebc84d9b8ea8a0d44e7d145941f9feca0772f0591463580194132399c7fdb132432f88820946ebde116d68241c17c0b9728fbb1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}