{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120303",
    "entityType": "User",
    "nonce": "0x84d46308b412b934de48d9a28ef33db68c8bacb61236585e84d35c57369808b0",
    "signature": "0x6d447810cba114838c2b60319edceef4be30f219c30a250d22cc2600b039ce6979a2c229ce3de5e2ee62e7f599ebd3033ec3a29b099a7e6ac179e4fdd3893fb51b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}