{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf114ea5487a5be948d19c38ecdb178a1f620c725abf7eaeb77cbc3737f6c732c",
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    "signer": "0xB289348d4923990cBf6f24d0B1Eb55ad91d3cD9F",
    "userId": "127579451"
  }
}