{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145786",
    "entityType": "User",
    "nonce": "0xf7e8f74790955819d9d4d5d2fd068976a5d332758ebfcae8c5ab24ca765dfd6c",
    "signature": "0xca367b3f4b8dcc914316c607dac92a58f9d2611d40f2a70cefd408c15a84e1852df17cc30d46021dff6efff84b3c74df7cdc0b6b88dc0a882f0d420b629b38e31c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}