{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61852",
    "entityType": "User",
    "nonce": "0xf3c0b4c3c28fbf27bfbc6e0e36284af1738f343ed5e66d07c0ba9de4a22f3f20",
    "signature": "0x9863fafbcb2cb4f7897739eadc561a6be14c554e11480a2274507e1002cb0f2a133faf82a01ad95bb82212924e4fd1ece25c8ab26fdcb9a1e6cc6288ea957fbe1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}