{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216497",
    "entityType": "User",
    "nonce": "0xe4f1e9e88b2d7cb3c12d0c1c31b63ac91e67f3f8b6a8b1e523bb6fdd0897c797",
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    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}