{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1901458",
    "entityType": "User",
    "nonce": "0xf7fc7ed1aff6def85996deb8b54d28d0572fac71f5b55fe5bc978e8683f319b0",
    "signature": "0x8686d7a91c17f1b25f9c95c7acde684d3f80f4da08a5f5194a116db2c036294165f4e7d20079cf340bda5b448a8c84411f28f25c2dc695c11225d497f6bbc6f51c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}