{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1722125",
    "entityType": "User",
    "nonce": "0x4866b26da95b520415a2401f7128c84a8eaa7f69eff9bb972110eeb9a0b08fa0",
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    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}