{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x80a1032d2057b14af498ee8228e756a8bfd4a47ad1f7887c91aac3d9ef9a2aa7",
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    "signer": "0xE234784b98FE3454C0a272E45cE971995AE1a3F3",
    "userId": "929430799"
  }
}