{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "69980",
    "entityType": "User",
    "nonce": "0x920b6c059ed59eb97fcc0d05b0c1ddacade9540815ef46c2b29b19db65632123",
    "signature": "0x24d061ad837d2984855114bfc8a3c07965dd4ef38f7619b4bed072c19a1834526e257de8a9ecbf33522aad8801982d6e82de3e52506deda6de73b455fbef4e171c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}