{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281294",
    "entityType": "User",
    "nonce": "0x2e617dfbe632126f706159c521e3c776b57ef765a1b948c8623786722d04a4e1",
    "signature": "0x52878b55777c5d59fc4720845f0f334e4241661591e08a231896097f451faf847ba90f138e1ff58f3f953c0ba38e00d3defe761c5008a187c1a5e647ee5bc0511b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}