{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386745392",
    "entityType": "User",
    "nonce": "0xc5fc815bab4a3e7d1ea14e649dbd262f0589b20bc95c970f103d0c3f0ea5a61a",
    "signature": "0xa30142496032e03cc1d39ea763c996a32e65f5d9ebce1b302a2ba008628a3c604480be7166fd1eee6947c1bce9e56de9b7fe07b6aeebfc90555018d94e2a68641c",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}