{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x043255ab12c98630ae657eec8a9f4eb398891a1666ee2c40b91c1a8e26be7e74",
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    "signer": "0xCfbE835B75FD5F0aA89ef2B26E43ea4b5AFa873B",
    "userId": "15292436"
  }
}