{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451691735",
    "entityType": "User",
    "nonce": "0x6e1d2a8e0af5f8fcb1f512e90275161d330253fa1901556ca35aa001bf16b50a",
    "signature": "0x59aa552bbe36c519cd3faa3ac7f70ded96ec2f7b1f7215adde7720bbb6c7f9674b322d0a74108005c2aa9ff1db0ddabc9b6ba4f6aea059a2ca3a3c9ce9c1f11d1c",
    "signer": "0x010cB46d152E36a44C20a8B49d0e5EB9f8137640",
    "userId": "783803332"
  }
}