{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8bee4cd73ee432530039cc3c242a500014d7787af2bfe2025461ab469275320e",
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    "signer": "0xD46F845830C18d0d5F9612bd484964FA1fa950C2",
    "userId": "918451801"
  }
}