{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x0319449a239c1766bf8d141a96780ae2bde135c474e60de96a0166b45515a59b",
    "signature": "0x6f896438a0bae87cdc808125eab68eea8a4cd573c59f0ef333fec3a405b20f1273b7e66bac8a14dd213a38085bf8fb89de717714b0220608da920796d0a1bc391c",
    "signer": "0x9acF8CBE8f2B0d51e756C58D6d1f946A8757602F",
    "userId": "428941685"
  }
}