{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7875",
    "entityType": "User",
    "nonce": "0x0ac487684b709df0b69e9e9fd97d7984ea5c97ef6cf8742677aeb6e4e95fdda9",
    "signature": "0xd190fbdc38e378ed183ccd06618ea91df51fae2f9931a4294c70d1afa99523917c66654d252271ff7a8db16572803047c334f5247895af5308464902d955654a1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}