{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231243",
    "entityType": "User",
    "nonce": "0xad701f66a945612ff93235887bdb6b20adb49e0c08575a16865b470919b57b5e",
    "signature": "0x30d6658b1cb295e30aea28cfae0b68d7f9c68bf2620843621d2d3a77654efc3f732800e97c2194928285bd7cc9c1565dd5abd937b41f87b833d63e72a4c12a4a1b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}