{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "233533",
    "entityType": "User",
    "nonce": "0xc4a0dcbb40b99a1d08cb0eb086cd6fb9cc7e9829839074895ebfed363809e2a9",
    "signature": "0x37855011d3ebdbf3fa75e449ce6231916e537324dc53b476145f54c6b8257fe8105a0ec6717f2a869c2ff84da5fe351485e4e3a781371805f1948aa6127f9aa31b",
    "signer": "0x850aA0456b0ef795D5D345834cb661E8c083574F",
    "userId": "733747072"
  }
}