{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "958053535",
    "entityType": "User",
    "nonce": "0x14fc7a80068c93f299e42b72991282d9a047844e87b2466039d50af477ba1065",
    "signature": "0x437f1e3d9d82dd3967badc390e711de5b4e561a8f3749e392fd5bb52b0fa794d7eb21c264391e817f94b8cf77c0e4a4b6ceb90ba9a7c3deb0b4b7958ce26bbf71c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}