{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29243",
    "entityType": "User",
    "nonce": "0x64985cdff1341515c3b6c3eb32828fa8603d3dfa098bc7a09e88d9f4d5ca12bd",
    "signature": "0x10dc928844a7de1e2df0bfe7feeb8da7e8ad71cea984b9f2a8c0a8f22503d14c610fff66185c087f7e7771c74a5354999f98d196286b82429336d874397f7a881b",
    "signer": "0x6C21Eb86A025E3C8C2e589Dccd23B0D6eB2E383b",
    "userId": "662754824"
  }
}