{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x6feee59de94553173d9fd8e5ca13029c4295995f8be52eb67a1f6b5efebed42e",
    "signature": "0x1812ff76e95da767807c5e460795e951e62e1edc3250525f9ad99f85397e1679390a2b1b714ffbf3fd37c31b95569c2c50526b1c26a325c26cd1a13f9a536f421c",
    "signer": "0xf0F491bE628c3A5BF3904d1Ae68bc59234407951",
    "userId": "560417026"
  }
}