{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128172",
    "entityType": "User",
    "nonce": "0xb7798d274cf5967476ec4caf8abb8364955b5cf1866a554c592499fc123cf1af",
    "signature": "0x252a659e042a3fe07329a75c67ae12a097b434acd485da4fee4f1ccf2a104127027c2746a3c830a1f337259122d77b140f00e6b279dc2f20d7578916700d5d781b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}