{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "76739",
    "entityType": "User",
    "nonce": "0x8ab61f9e7391701051f458f77e8fab8fa6476d2b0fe3362b5071e14de1547e71",
    "signature": "0x7f1dba3450320aafcb2dc00125387c062440ddc9618ac3d6ccdbd3eb950b5b4c2cfa8c5f289717421606f57b11469447e8a33916515d34905531851c48a8b2101b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}