{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x40b4bbee5f3504c29e38a9edc642c0b9befe44c5c1b02c8b82913f002b637be0",
    "signature": "0x7f8c92087c501a1f30039839f9cad4abaca67aed72bd278bf2adaa2371c7dc6216ca8c43cb3dedf049497fb809098193db6fb6d4912af9bff4b6bfa6cc9d41bc1b",
    "signer": "0x5c2e2A73436Afc1110f5020da81CA7f791682E96",
    "userId": "871579076"
  }
}