{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "281227",
    "entityType": "User",
    "nonce": "0x132012c1ff78b97f4c8f3e5a923b66ce49da4564353099eedb52b7515ff61a91",
    "signature": "0x7fc59593d8588b4521c8eefbff48d72e68ef817ed965ac8e50843721bdb2ace51ac32e43028ecefef9b50c4dd3f2326bebaf531b8746d726b23a6705d7bb3e501b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}