{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "179782",
    "entityType": "User",
    "nonce": "0xa3508209f0be5d09003dd484d18e1fef950a711fe790d5148b918b794450b22d",
    "signature": "0xcc12d100e718ede9e801f19ae707c4c4d676c77e26f7b2f3c6524e9c10edff400a99f7557c7a4485e7a2b2ed6ee3e137ad2d0c5894f7edc4b85d9297369761831b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}