{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30288",
    "entityType": "User",
    "nonce": "0x8f90e59dca3a2106cdc8018617deb23668cf5b361ed0aec5b9b9c4cbdfffd551",
    "signature": "0x79dbbd919c532b487ea84ef167ca03cdb47b0574092ecfbf46f3e03428d3f2d73f81d9165eefbfbee5f49752040599647d58227472e74a96fb6bb0ec75d7fa6d1b",
    "signer": "0x10c2ea80C26695c7e0e7890EE9AA43251718D3bD",
    "userId": "101222844"
  }
}