{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0x5dfa68fc0c82994f94bc0a87e47fe450a863adec657bc5ed5ee3874d2286020e",
    "signature": "0x714801a66415d9b684d9fbe9ac04ace68282be84499a2118723dbed1a9cfa6db18de86ea574d155aa1064db52919bdd0117e8936c7f5eb6e08d5c109ab81f56e1b",
    "signer": "0x7f590bEFD43b7cCcF038372CE50C813B4290A5f4",
    "userId": "297301449"
  }
}