{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "508186998",
    "entityType": "User",
    "nonce": "0xea2018ed5d15e2a610f4b55dd498ff9add722dd8167c81eea7e6fa3fce8288c6",
    "signature": "0xf23bbd5b44e98bd5259a24266ae3ad3e63db59e6c97f45f52a4ff22920cfdc23437f332e46d497cd83a71001f259c5c40bc17604132be44ff61fb25011ea40e51c",
    "signer": "0x1ABf6DD41fe1E6b1C2d3A69859a25C92caa31b32",
    "userId": "17689"
  }
}