{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "307756",
    "entityType": "User",
    "nonce": "0x98e02e0b60786840067b2d0ad73811ba0c2f8f368acf911bd40b5db1d95e8871",
    "signature": "0xa5eeca9928b447d5d589d259ab83de776aee73966bb20d918acf3471c16e271e22bd7547fb34fdec22cecc5c8630bf93b336d72b40056d3f21d159c4f3da6acb1b",
    "signer": "0xaC2dE7715e3c8cF361cD6EC75fb75b2EBd90cFda",
    "userId": "417417032"
  }
}