{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83223",
    "entityType": "User",
    "nonce": "0xb0f6436c32790d538c0b8cdb8712c023723c6325c6eb9eada1f6eb332d414fbf",
    "signature": "0x23b792161fe848c259ce854b129aaeeaf33e34e95879543b3aac2df9c19a42ff497fc24cd3645f0075325decc79dd6b8878b8a1a75d80f2705bc67d71ebcff671c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}