{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54988",
    "entityType": "User",
    "nonce": "0xde95be7ccd833cb2e01a705651ee77602ff0f657997eeb630136671ad4e5e044",
    "signature": "0xb656200f9ded6410b70fae3b28fa0518313a991f4ea9b9423ef0a17fe1331a2c0aac2dd8bf15f0f09ddabca2310ec3a166cade8be209f4771d5c2d4c803c4e8c1c",
    "signer": "0x54D362526D5eB0fc8EB7d57F98e44043728242Fd",
    "userId": "299215619"
  }
}