{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951116729",
    "entityType": "User",
    "nonce": "0x78ca3da7cbbaa27fa201f9c725d66bb1dae220f864eb4078b9e49ffbac090d4d",
    "signature": "0x9afcca48d2140eaa1d3cd1a4f0341f6648dcd57641263080c6bc5dd2ee213fc05d40d81668d9eb29825a5ae4302a7f80d344d8e1ad019085eca5943e30db7d981b",
    "signer": "0xa185Ff45de6FF68eAa1d7ceC338cba250810134c",
    "userId": "54166466"
  }
}