{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd1580f5b6f0ae22824a16e06b2adb35604c6a7864ccb007bf48e90aaae8242c4",
    "signature": "0xd442bc9f4543cc44e75801f1c2217c949ef2bb0b1e14f67d1e8f3694293e68810264c9d27dfa4e7e93151bd73278c8c20ec3d0d6f694b0715ffc8bc8772465fb1b",
    "signer": "0x2AAADB606C920aFAa8a8065e070Dd0D5B1080422",
    "userId": "963024726"
  }
}