{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157194",
    "entityType": "User",
    "nonce": "0x57e41c0dd66c8484d984877e06bfda78f7d0df0a4c7f24efb7be287bc5b13dd2",
    "signature": "0xa6f50d658909c4111acaa5f4ad42ee101a2d82829ef53afbbc6565eed3422e225914692d8f7bfda5ca27f2017515f75ae062499a6bfa44d2d4154f94349374d91c",
    "signer": "0x649d997E15e25c0eE564056Bf93fFe195a9e15FF",
    "userId": "818969937"
  }
}