{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0xccd19aeee6bce409035b48e573c7ec63b65d7f1f1ba688e728f8fff99fec85ab",
    "signature": "0x48fff20ff6be78bc7c3d59b33b6ad0d62fe2c05eca76de890dcb0a6f4fc3df9516f43ee43270f27ec3fc568e993c5fb4c66c4ceb3bd9b800bf0663a83c34ec281b",
    "signer": "0x75647f568e0a3C7594Add477c1BC9CBedBeF7B42",
    "userId": "795494717"
  }
}