{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231243",
    "entityType": "User",
    "nonce": "0x9ff1ac81bcc5df263c3bc63319cccb20973eb4148813ae78bd3e86b66f9d6f65",
    "signature": "0x8704b04a1e5a8e380eac30764bd78b36976e67f73f8313c3d75634ee7a8edf0e27274083259c10e6a1b74dba4918ecfd8d83701ccc6bbb050b6acbd1c8645cf01c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}