{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395416959",
    "entityType": "User",
    "nonce": "0xc39c5232ababfbc53fd277b2411b175ff41092a56dec03e3b5555dee3e1d5847",
    "signature": "0x2e8ebbb6697416b68431feab7982d62685fae3e5641ad7ec3f8238ec79abdb502d1bf544f2fc0eb1d9dd1760c9f40ecb49083ab183114fe4d562a1a5889ca5021c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}