{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163449",
    "entityType": "User",
    "nonce": "0x86b11d18396bf2cde41cf7dcb5f8e97dfe4793f53bae18d893b68f5ece745b60",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}