{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296466",
    "entityType": "User",
    "nonce": "0x30b30838b56583d16fa57e2008798953f9bb66749c4da152c55ce8fb3b943cba",
    "signature": "0x2078515494a01a35f9aa26119e11e532e77b5faca3aca204a3c421099eee7e2774328c97b70c78b495d2bb36ea92755d0824c7db5397b6f240ec97ff5b83ec761b",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}