{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843421708",
    "entityType": "User",
    "nonce": "0xee4059c5c8a6f56183ee706f4f940aec57ba32c27be6c776dac3a6f5b5e3dd72",
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    "signer": "0xB37E6e788b6A39dCDcB53bf8D70077f76F5F5C26",
    "userId": "895209133"
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}