{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428126",
    "entityType": "User",
    "nonce": "0xa5b671a4b1fb2781e3048bb1ebb0723d1684557b422d30aa92a3e1af9d4d7320",
    "signature": "0x34f01f5e1a6ff94da7bf0dfce7e0410c88275a6b65c61fb8a67d01dc8bcb6b8d24f2f96a64b0d66dc674aa23ab37a3823c93846ab5f426c60540a0f7c856d6cf1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}