{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283910050",
    "entityType": "User",
    "nonce": "0x978dde2dc024f5891a046e92ff1b3a8cc6009d8889286f97e2a145d20262c6ca",
    "signature": "0x8c46d677a601ecbf23dec17dea1bf21caae3930bd7fd0302afd31fa8a41549b149f85f37270d7e45e568ef184065f90a87ddfb207fdaf47b9e3701bf84b1d88a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}