{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5a136c68e4c673152848c22c4eca3498b0dfcd1ffc4d6cf32487fa827a06f3fa",
    "signature": "0x7cfef4a56ea4aa4ceb79527c8d15b8e7ec94ab3b25a1d1ae2b3f822ce626cb69181132c1462c8c6ffc7039f2dd87cf601a043fe00164fa8f89d4264ed6c897621b",
    "signer": "0x815A3Fe16ae7133020bD669B3aA3b42FF9237081",
    "userId": "829414062"
  }
}