{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xb38d2a908a409d4751f0b0197dc5eece307348d4a5ace46b3a007555cd2fb57c",
    "signature": "0xb339d146eff16e0b2b9a63d944cc4dd0314a9544ea3a4e3a903d1b1af6f81cc358b0202e5f4acddf73d7201974d2376b1e3733a48a9bdb027671264d23ccc4191c",
    "signer": "0x9a5ed0b3F555Cb77D9B73d00AF43BaA4F88b1487",
    "userId": "736503935"
  }
}