{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "759332221",
    "entityType": "User",
    "nonce": "0xe1b41e56f71c30d0e98777c62dca55877528c6cda6f260d44052535263084bca",
    "signature": "0xa1ce49204f01988ec123ba5f6b007554458802c45b16f2d0d923dde5306d4baa4ab9a6494643492a1e160b19e53d9e43ee507855c9361309bddf6d9919de21ad1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}