{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1037367",
    "entityType": "User",
    "nonce": "0x0a79354bfbfb3fe527298183fa290d793e48a9abd0665549ecf27d2acc91fb05",
    "signature": "0x8e1f993c0dbbfbc5ec6bcd909c8e3500221c40c98fd0c39e8e08bcee0a40bdcb6cd413fa6501a64626cae0278f9e7c9d33418d2f2588be499606b49b4bd7810e1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}