{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335904",
    "entityType": "User",
    "nonce": "0xb8ae4c40206b830312d2e163fba5aef759b51c829a22f8f83bf997235bbc1cd4",
    "signature": "0x7f8c52a769110563dbb9881a382c6e85296625c1ed6bebb0baa16995cb9f8bd954fa70b0f14749c8f58a3dd41f327ebb563dad13b54cfe549da88dd7425d66121c",
    "signer": "0x58EAc4AA86d205B68457Ebfe3e8c6bC12f232b71",
    "userId": "583331416"
  }
}