{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "253005",
    "entityType": "User",
    "nonce": "0x694e5437d3d29cbe6adbea7f121d35417a8ae3194484fac8e0960f0ee4018744",
    "signature": "0xbdb72def180575b205067e3da5140aa4c67c48ea1aede2aed4be2d6802b6af6f061e2046c65bfa5c4c8f2e3a907d6d6a9840fd13fd415e176c2628e5007fe5231b",
    "signer": "0xc81D26e158A6dA5010159Ff739b264B746Dc73ae",
    "userId": "99936956"
  }
}