{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57006",
    "entityType": "User",
    "nonce": "0x881ec544fc17aeda9e58ab6ceb482cdd9f6f82d556f9f99d3743be3c1d9d8747",
    "signature": "0x7709282e58d229e53c906327f952453bd45f7f57b9024132d7a14673481631c563fbddafa9fc30eff943c358456ec2f13118d8ac1008ed17d3e06f710c1c1aec1b",
    "signer": "0xA5594f75935B53086a8f3231b314C131605FEDA6",
    "userId": "140185425"
  }
}