{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x706d34da0699b06c0c4b87a86a8fe9dcce727870782e2450cd42feb1a947c954",
    "signature": "0xa417ef0a99537c41a3c679e88e26f90006ec23f694728eaf341bd3735233f06b34dbe797cc01220261946129847417902a6764458ad4b55b54d021800afe58971c",
    "signer": "0xCe8b9C285db4b64890E22179787F1B43A8E2Ee46",
    "userId": "30764527"
  }
}