{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb48ba4fb52e5e2e96f01164b47faabcd7254f35a11f2b5200680782ed5121cbe",
    "signature": "0x0e8f07a7766242e6297cc1b911d34ed6129354b354f7112f4ac826418f306ec4452c2f269167347b95d6068e5dd7ac1c7f46e274609a8c5e83f4712cd68882a11c",
    "signer": "0x069B8AfA1738ee411F7138e49d8baA21774732C8",
    "userId": "403438532"
  }
}