{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "910859044",
    "entityType": "User",
    "nonce": "0xdfd6b342279e11ed037b715d4d3280a1407e042c4c5f8a3440410d97cff5e146",
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    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}