{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x69e6b68b8b0fcb0ebf0d7215fdc0be7878864ba3663a17b7f7cf9082965f9e8d",
    "signature": "0x6ddf632125fc13607ea0209244c036332cec10087fb95ab774ca4c51b813bdf72ed9c52f62fbdfa77888d7578eef727c89c0fd5d676e081bbb4b6a7ed72e13ae1b",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}