{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x54bfba4e05705c4e5f19a75bbe1eef5257076882f9dd1188c3d22adbdb9ae8ab",
    "signature": "0x35a0af2cae0ff3006a75301d74d5b7c922e3002ad73fea8bb777c9bb44e973d94138a69f826795136ffb2f2aa5ba148352ac18ed7ce0243eb370021d5f2cf19e1b",
    "signer": "0xbC6F2a03a7eF7517ed79dEA4d42b300BBa79f793",
    "userId": "515207100"
  }
}