{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "858352132",
    "entityType": "User",
    "nonce": "0xe8766233baa10eccea26504aa5650489c54f23b6c203f99af02ea84086195756",
    "signature": "0x7cc88733353a266a87ef34aa36d85e27908c37494de81a872ba9b086bb1fd4402b7875389e80466087c80f5b60dfccbb83598efe99963df8edf4b025a91ac1561c",
    "signer": "0x5156122E7f53a879786546b3133306b9F7814b9b",
    "userId": "781663071"
  }
}