{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0xb4f2d7554baeb6d6e6343556ecc3fbe7813e1735da1066c303012ae0a5f9a88a",
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    "signer": "0xB89F1CcEf1aC6470c3B2E93cC90eBC3359D18E87",
    "userId": "180380697"
  }
}