{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17301",
    "entityType": "User",
    "nonce": "0x61b0d52e12efae05c8f9a8bdd3cf4b9a83586c552b9d69dc0db6354f74670bbe",
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    "signer": "0xE176510B4C6a60d098ec2C19394fa2F1F20b3cd3",
    "userId": "103319132"
  }
}