{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xfa2b47724e3ab994b49120b43438bdc49bdef617c00e6dd443f5a36037946f87",
    "signature": "0xa50a77aa5b127c44dd521278a7f428e0a4f34c7c10998e7ae86e3a4bcf34d99d1da5165735113b14fdb4cd8e5de63cc0f58a5cfcc2e3854d06869328fdcb2e061b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}