{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871929900",
    "entityType": "User",
    "nonce": "0xfb631ebdb2d8fd6ba04ca8e11f7757791b918fa6b33c6e9dc807bb849e8b3d0f",
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    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}