{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327589",
    "entityType": "User",
    "nonce": "0xd3d6b852b2ab4c7cea85427136b1177127a87a0522faf91e985b6dd07acbbf09",
    "signature": "0x00911c45808a8b4c3d067de82754fc7cb87d3d41cf9ff595fa53633edfc5b33759e443d4e2ce2e74b05472ef2dabdaf598745b1d493a9777b4c11dd1563ae8661b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}