{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "824478223",
    "entityType": "User",
    "nonce": "0x599bb3ce39892fa9de9086d1d8a627c3a084fc0228088a889a404abde17c7031",
    "signature": "0x37bba9cbf6565d05a00fa9b3dee50fc023f621d5dfda4c3bb8d61833b78259a0795924e1249a83f212056ed9d471e26d9dc718b3a7d53613b553e8650b0799141c",
    "signer": "0xb0bc7585AC84F169814851A3C22d8d92D133337F",
    "userId": "267657235"
  }
}