{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395863",
    "entityType": "User",
    "nonce": "0x0e56563035c778705706362e6cb9361f163b9a95a4f7cb5e569aae50aee4392f",
    "signature": "0x5c6f36eac0fb4f9e2d0f3b91ab73476c4440d1b637584ed6306fc1b9bb57dd4c685de6e2d646ed8492e90c4292748f5758a9035f25549027e555883cecb4c01c1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}