{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "133408",
    "entityType": "User",
    "nonce": "0x55294b4d115371ec7a8de7edb7f1cb8a798f738f65dfb3802db459f3dd079c44",
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    "signer": "0xB44FA70A3CF753312E4170e37394A9CBCff27789",
    "userId": "59026063"
  }
}