{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "62800",
    "entityType": "User",
    "nonce": "0xec9692699dff1cb7b3ca67a2b752e72b139cc2932c87e5ad2bad32bea385bd54",
    "signature": "0xe3b2033b5e3359fc7074d6eb81379183b1055f0446cd309b8b8fbec38cdc0ca4087cecd62a9261a4e184b5453965f97af2fdfec04d267959c3259b9202cbe5c11c",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}