{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916757808",
    "entityType": "User",
    "nonce": "0x0200361cb94b0b9477e3324f390d66755ff988d44247362744bda4e84bb36a3d",
    "signature": "0x8a0bf8cd0da7365dd99d063526df59e2786df6a5b46f13f785d3616777b38149576d0b6227b4184d8471acd2847105fc00f78dd4eb8549c506f6ff051a0e9e3f1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}