{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8b6a3bce8c8886d84c3e101dc8d589ba8c1da31afadee503f30ac016fb34f4b4",
    "signature": "0xfa697794277efeecb8c62d0aaba5ac47a55e3bc704cac2d5802dd3fa0eeebf547700355b1fe103deda6b0fdb0204c909ee381dc02909ab2c75687297b771bc8c1c",
    "signer": "0x81D02EcDcd664B799838B198FBCB5DCFF80De053",
    "userId": "715289203"
  }
}