{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "184500",
    "entityType": "User",
    "nonce": "0x8aa086bb250ac6a38ca873fd4e62936a690b068b37e2d4f2bbf04020752e6348",
    "signature": "0x4416c2602906c9b1f7e24fed83824fc20de94e1ec7f6fb4e37ba5d80d339c8ec4abc8a454d45a72c36c1edabb7a0a54b79c308bdbc36ef3381e759400a06d8db1c",
    "signer": "0xa6030211678990225Ac0a6a2862549d825e7A039",
    "userId": "543439291"
  }
}