{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1674010",
    "entityType": "User",
    "nonce": "0xf87c7b4acfa067730e8ef9480fe882027500760180cfbf8e806eb3be63d5e396",
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    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
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}