{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc50d81915b5e060118d53cc6807f816b2b004e209fa35dbce8f55a51cc5c966a",
    "signature": "0xa4d6cd175f7135c44332a6008ceefcac4436f348b7dbc871a3762f26188bbf7c05ac67737fbf957fd387d4ada83cd71a14fd7090f789424e11b71222e6a5f65d1c",
    "signer": "0x4ab505DBD73CB27C1457E037607E5fB3B27915f9",
    "userId": "186630"
  }
}