{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385676003",
    "entityType": "User",
    "nonce": "0x6f88296034fe80fad5cabcba8b0c00b63a6b58e4ee02b170c8d192d6062d09b7",
    "signature": "0x2a7d924ea1f0c91e7dd1dc9a7ab3719acde3f15ca450c4167fb1417f68805fb976b707277e8d5b76b5f83655566905a987166a3f482d371d73f3765acbf12a301b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}