{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xffd8d48b4521f166996b79209fd19ea7745b4f63bf0195dd947904a24e7ab8cf",
    "signature": "0x2e7c01ff43c72fda208a828e389b1dfdef0af241e95916938ed1623e71d7032930b2858fd0100577bce2af0b1a73a9bc15f2127bcb25f15d2f2a0c8e9829b33b1b",
    "signer": "0x045f3ff2A6ac0332f4f6288E35B9d3d1Ae169354",
    "userId": "704529763"
  }
}