{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "860501393",
    "entityType": "User",
    "nonce": "0x3b7438e965d451bd6631b94ae78cb84355fcf64df01b8099197e5f763fb5ff9a",
    "signature": "0xc080b2347ea9f72686365cbe1194b6e4b19dec1eae292a8d87df612a4c79ac391e15aae77e5a348b82b6cd0e2ddb1b3bc189bdcd81fb91c68e2bb29f42cb78501b",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}