{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5342",
    "entityType": "User",
    "nonce": "0x9cdd7943a9f3196ecc188c4fcb259222fcd29a9131dc59ba2b9dab995a0538f7",
    "signature": "0xea0d63eaf64c00dfdc56b1fee3b6575ae607de608fe91d35fb2cc1773de7c5476f67b1f40d20289bb64dd0ea373eae72c1650702fccd371f8f57359c7781462a1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}