{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "266663",
    "entityType": "User",
    "nonce": "0x776adaeef4c7c5d0e943c7de90ba87f7d80086bedeafb5c21353abff5ec4c98d",
    "signature": "0x4bd8a6f0c4202c0df478f3d8029a6ebb2f642e451c4b610b9b5234a38a4729094ce6cc2acde1bc17281fb568043fc6f7a6654964097013f9ac981972ab42909d1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}