{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x15c90640142b8e78955e1f9248fc3f64959e3b03f45edc96429fc682e25b4e3d",
    "signature": "0x38bbcbe6406faab52fdb89566ac0b98eb1b73421c8814d9098c3e434808e4fb5046b52cc8d00499b3fe88cad479c95b7fbba756a639d6e20a4cbaec977fb873c1b",
    "signer": "0x7396228B867F22E14B63c6B3071f697532E2dd3e",
    "userId": "635050374"
  }
}