{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1139109",
    "entityType": "User",
    "nonce": "0x427a4e777dbd072b801736983038e6a42d90e13bb61ecb08c1b1b35ec91e5498",
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    "signer": "0xD65418037f9b8653C61558a6A2445F39631E0789",
    "userId": "247970151"
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}