{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124266",
    "entityType": "User",
    "nonce": "0x5b5e675419e2083fc3dc878917f601706d0beccf4d20bd8139cf4cb2500a92ac",
    "signature": "0x33d1426d6a4886ebd9302ff8c8ffb6cd362f789ab64a251542487638853a7f1e1357be59757dbd22c6318840b3ca8e231ed6a1cc71bcbbb5d132a53b86ae54791b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}