{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0xa21ad486163ee7404843c28f9b4381ccc1a02014001e49926126c96eb2248220",
    "signature": "0x0f7a28e5d885c01dc49b725633fde80428b59f6782afaaccc73070eb14954a644343aff96700f6279ace879fa06483a8e4098f4cabd83e6732afe9ee5381be651b",
    "signer": "0xCA34537176e273Efc43776B70B5c70CdD5baE067",
    "userId": "403911835"
  }
}