{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "199417755",
    "entityType": "User",
    "nonce": "0x832bbb03e92eec9f965a753f0c575136da136e36cffbb17c0983772ae0c22889",
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    "signer": "0xaa3bcf8712A3f5a178c83edE5e3DA745C257458e",
    "userId": "976266161"
  }
}