{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xde0f6a2966ad4e11517a7110707753972c45a94a7988eb7ed6f576170c886d5c",
    "signature": "0xda26ae7913f3b1bf2a0624593e0da8254d9598bf36e16ae2bf14299a3e33643d48c2d820037db4f646bc70eed3aadeba68a59d5c0d293d94a40aa9bba2ea9bf51c",
    "signer": "0xBD22138a7760a04d411f4473A28C34F1b1205c78",
    "userId": "635618052"
  }
}