{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "482951052",
    "entityType": "User",
    "nonce": "0x7c941a6d5685887a643a67dc36b8241193757c4e1de2770562de7d5b46c8c5eb",
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    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}