{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "196632465",
    "entityType": "User",
    "nonce": "0xe68141b41b2988284fbe1d6d460ee8eeb738d51d8c0b5c459d239dc4a88d3a5c",
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    "signer": "0x88602394b9baf0757a2CbE35FC3fBdb9E75b6DEb",
    "userId": "129329734"
  }
}