{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55234",
    "entityType": "User",
    "nonce": "0xb2409ce208f561eb28f35773a5fbd541c4c2c5ef1b98d055c03835f3f3273020",
    "signature": "0x22175aabf6fc1caf74fdb9e062148644a769e4fa3d0a5c16a08608630199e5520ce70bbe892986107632385312d5b58d30362bd7fefd852bdce7b0204516ff741c",
    "signer": "0x90508144365a4b20f9909C3C9b96a5aF240cC9F8",
    "userId": "330534898"
  }
}