{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1979831",
    "entityType": "User",
    "nonce": "0x28bb4ed0f74e4e2f00d3b95802f8cd5db2388b2ae4b606b0bb10ca6eea80edf9",
    "signature": "0xb5ec652cd6a31cc01fc6381466fa65021055dad5e24eaa932a2c4fa856cfd73f4cc905c31c23bc2990dd33a3df20c90e4075f92c926bccdaf8adc2c7cde468d11b",
    "signer": "0xad1E2A70fa1227797344FD6df31327a26552461a",
    "userId": "153162"
  }
}