{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0b5afcade70b549654aa0ea0820e64c76fbc7840661d8b90b6cdca4d0185d584",
    "signature": "0xdfe56c0e2fee84e21662bd604f91550d4f1bf466b65da94d941538dc30c324225dfac1acd92aab54734bcbd14b4793781357be6ff933da669c7b998fbe9be5f31b",
    "signer": "0x4FDE84973899A46dC7719516DFfe7204396b8e80",
    "userId": "860728105"
  }
}