{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4280c9f1627d09d4abef42cbaedb7a1bd3b359b7b25ecf8487482db6408780da",
    "signature": "0x5bb73c78b8b2dcd57019cb8d3a42b360abf48eaa814f5fe696ff39acf869f82c22fcc93f108c1021b25fd1652c64bf5ada179098d48774f75a5fc8672c949c151c",
    "signer": "0xa33B035d6435BE4bFf115E5FB72d2328DfC6ADE2",
    "userId": "783297978"
  }
}