{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294860",
    "entityType": "User",
    "nonce": "0x4d7b4b98a4efbd3877861c2f90fa9c4a8d3c1ce8f721f0327cfe49ec16444c82",
    "signature": "0x1cddb0552f9219d99c63e811a97827ef907de8db82a4a2f86cdb3a3e4230dcb6316846c09580cc0b13f872d8bc144c502b7d2ab383b5e5253d4caf94e6981ef91c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}