{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "60866",
    "entityType": "User",
    "nonce": "0x8b758d134a30439c6b82bd19d68b63c0a272c5ff779ca13236fffec499355af6",
    "signature": "0x9baa31c0c8f144f6bccb11279f044ca65e709331e38d36848cd42cc3e8cd60bb305e06dfce0e4a0275b762bef06a5b76d609b6837e6d260663644013416245d61c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}