{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3a4c4d3f938ce345f4aed3e82607b95582033fd7090358d6b96cfe5c825ad8a4",
    "signature": "0x48f727350c390fc8651b495fc7219534226da5da9e7e4050637b34d73227e9b277481fb921db26bd96891e070903a81ae7e38a89d9cfabe21b8d8c8ccd2f30541b",
    "signer": "0xE67be183bBF2A23e544175b99f85FfCeA89a5164",
    "userId": "406881157"
  }
}