{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae6b943a836d213588c620ea2af60a65e7fe1f10584b4f45df3508d796b3cc79",
    "signature": "0x3987892fadd198cb85adfed1f3eaaf8872a241014e3e82cbb4aaf6ce30fcf5017825211078dbdf75ff79e23c266da68b86bc40866ead0932b90f1d2012dce4981b",
    "signer": "0x513f250dA1aDEE033Ab571cdDFA90FCCf87A9dE7",
    "userId": "984275507"
  }
}