{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1413574",
    "entityType": "User",
    "nonce": "0xb603b90f30e6ba575b6d70431c12077a26146dd1bd68899ac1a358ec070bc89d",
    "signature": "0xda2f0679a9889b23cf4115647746f1bef7de10a006b2f3a51fa81a5182b638b3145c9e260445c288eccfaefa7f69142e06e47b61d09233df68d8eee6895a36f41b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}