{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "264286",
    "entityType": "User",
    "nonce": "0x4bee109f61b4e36f832b245532d69af84d083e2a64d1b6ba54719952994f77c4",
    "signature": "0xde8782318d690aeeb1732a0cc2a12216df2e5d8ab488592ec0f8e4a9bc50b05b1b8a9f6605eb6faa792ab3b0c1c258e6d78be1918ce8a4e4fa595072ebdd9b5a1c",
    "signer": "0x866CB73184a8420C302e3850B610761F882C4DDE",
    "userId": "166428182"
  }
}