{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100233",
    "entityType": "User",
    "nonce": "0xe4c8fd3e9aac6e0d01d20ac251c48ff601a41551d123b5859084ae95befbe1a9",
    "signature": "0x526a144239d99531cd7d01addb00c369cd9705eb2cf40be065be1f7cbee1993f5311ac3c0b88236f1add226ecd1637b1b1810ad15daf5d5578ff8c51869414c01c",
    "signer": "0x80005E1c5cb88Fd03a994eC8a06eFD4c801102D7",
    "userId": "225974748"
  }
}