{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "465531556",
    "entityType": "User",
    "nonce": "0xeb589199b252e6448b1b78954b8fce5487864a17b8b57394dcccf7f41734399d",
    "signature": "0xfcb29528b49b04756cb62f35eefb8419a7591e4f0fccd2d1b09a09cd5751ecb76b9a336203bf7b3a7ecb7d509216b2cf7ee6c9c1cb20a0e14fdeb28906de7e5d1b",
    "signer": "0x16D3bf5a80bAfFB2f1550d49b1203D4CA532DA1C",
    "userId": "1994482"
  }
}