{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446567301",
    "entityType": "User",
    "nonce": "0xee6cd95aaa7db31524a7570d9d7c4d4b33d2ea8ce2b2f65b2bd5b93a5fe245b8",
    "signature": "0x7e7efd9f0651705ca524e760db86fa5e66893b8aa308014049022277559b68fc04aeea99c072dbfd572a7b6f4aee4acdcab54e57d25dd5f35a5e122e6175329d1c",
    "signer": "0x6fb79570A836Ea8554ad1D745C12769B22f1e4E3",
    "userId": "283478"
  }
}