{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77901",
    "entityType": "User",
    "nonce": "0xc3202f7ef03c86b224855c6137df2ba7d6908c1d0f63a206b92cc4dc806f8ec2",
    "signature": "0xb733fca4302d77da750bcc3100d912385a535435e5e219b6bc46413275be782e6e0aee5af4ec6372912f03171a4b014fc7e7d8353d3b953d34645c43025222101c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}