{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "409129",
    "entityType": "User",
    "nonce": "0xeebac318fd1fee63f57154c866a09b436a644011819ad434cddeb0aa613840c7",
    "signature": "0x4addc5e621db8b042ab1278a84f0579b5b7785c6075950e754a1431b182ff2b530fafbcfb142444d4aee84d755bbddef475a83bbba3d28fefcc0a1aca23c774a1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}