{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125858",
    "entityType": "User",
    "nonce": "0xbc32a03cd7db763740055dce92913d7b7f8ee0d98973d964b64c48de8e928af8",
    "signature": "0x1582354a0e28c4b103acf941a9a81786c975d507ebf23fcf4fe6cb181bf835284b7f0b33b032225ae0a28b733519111ba98efe344b9648e2ba1671c4b3d264471c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}