{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "847382330",
    "entityType": "User",
    "nonce": "0xf873d9bbc77c21c3480f010cfcc69dd368f11ae1006fbaf6471222d694d68563",
    "signature": "0xba86ec43dae319f0f6ba37fe12428251f8c50bd8eb636b79f0e946bea21cdbe27b5d9387eb42916552995574a93fc1b5dafdf162ddb71fdb4de7877cc522d1df1c",
    "signer": "0x6645b243b3B96cb2424A3884578895b92B97f5BC",
    "userId": "150691657"
  }
}