{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x60a9d8ebd2890065e70c821da84dd2847e007337f9a4adea36b8557a5365a312",
    "signature": "0xb27a36173000e7f3a47d84e0b9a7ba9204804a244af48906de74323b05e7825d3cab72647949a7bd932c37f4f17feef704a6aab51982b014a38fbf9e6552b7b31b",
    "signer": "0xa17BAE83C94a7EeF895403954F48657cdb28c44d",
    "userId": "752518585"
  }
}