{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "91965250",
    "entityType": "User",
    "nonce": "0x2818a21b7f69920d9b63a094848398e0c1a0516828d2f2e3626ea574f324f7c0",
    "signature": "0x8ff4e3056f5800211919fbf8daef8ccd33f227f20fc34ccbb615d1c8ccfef6eb6a8fd67551ac1afd5968bfbb10715cb6fffee6be1ff9e3ae2d502b6ec21690471c",
    "signer": "0xb4A0d67357A27C413B5930Adb975d62fF238D5Fc",
    "userId": "8989850"
  }
}