{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328416",
    "entityType": "User",
    "nonce": "0x59510fb6807abb9fb175094a944143007b970c88a750923be69b795ec1849f9f",
    "signature": "0x286eab50d5d46f6f3874db1dd7613d7823c17750475beec48671ecc2ec62550b47a7a02f5121f3fb12c0222107c39061072268a0d5a56872ea03d44d6fd96ad21c",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}