{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "195853",
    "entityType": "User",
    "nonce": "0xe7a6e525b0a7db399389f9125887793ccde244b37e6ba186a0c60d9c66a249ad",
    "signature": "0x1108eb96636ee8aa3dc36709bffd78d35d0289b4f8ccd5017502a3dfefc3dfa56ae6431fea81eba54a6db6a8f30dbaa0c0e8ff40d77f59fb9295a1e9f02b9b4d1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}