{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171594868",
    "entityType": "User",
    "nonce": "0xd7ae2bc809b15c8ddc3457f63e5cfae7642f2ebae4469d5f22fec08768e4101f",
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    "signer": "0x3e16afFf69eC32202c1B755Ad919C7aA325B7aBE",
    "userId": "902811065"
  }
}