{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "356671",
    "entityType": "User",
    "nonce": "0xf15dbb9c8abf6660179d36dd68c19fcd8e976330a81b93e4f16a625efa921a80",
    "signature": "0x06911e320b6bb07966110c019494bbc1d39bef24d050e5831fec18c9aea9094c4c374567751317d537954ea370dcbcf6fe782d4d28455bd71df84c88b9bc0f061c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}