{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "132688416",
    "entityType": "User",
    "nonce": "0x667b330be037d0ec5c67fc86c6a276d0c5d40a93a7c054ae71521d31efc2f0f5",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}