{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0x4fd7f5e3a87d3396f5812dadac2c884595c65e0446029338776b3bd7c2176669",
    "signature": "0xcaa4b59cd2ea95b6b2764eb60461d2fce1a079595ad47e9e72db6076be3025ff62e6525d0bb5cb880b901dd6e1b566a9e2d31d714026d762c28be33b92de5d501b",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}