{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x90865500367993e32b4dd9efc0240a7724dd7d9e8bd6fe381af261a117f99f0e",
    "signature": "0x0038c4a8bff22ca6ceac87755f829baef9793e6862346cf78953b2a9673254a5376fa510e69df939aa315575040ae9b7d68e0dfd247d5007eb473f0f89e454ff1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}