{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "422040",
    "entityType": "User",
    "nonce": "0x07327f38ecb2ea446a67360638abe178d38484e3794f5953c03da0b484f13f02",
    "signature": "0x42399472eb5135799a0ff6871d240c28d1f311310d0e43dad65b931ed735378729e4db3a4fc6a15a9dbf6d22466ca38f9c7b1e5f1ab7d433a6fb0800e441acf41c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}