{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "530504518",
    "entityType": "User",
    "nonce": "0xbb1fac3f46864ae8e15f516edcadeed612675fdc3f2ffc8e4cecf846e55d3b7c",
    "signature": "0x911f5303d707092641acb431433590f987481fa5c5af3f7870b07ed69da9d50749b703eb07633b4afe638a2224c36759da8a16f92c644037a6e14e132fa58d1d1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}