{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xefe410602bc91056fd75f8f8d1d05197f88e5ff37a335b46db9ae3ac245302bc",
    "signature": "0x58933cb582bcd883daf0d2c91552f8bd08f9aa5f6321a5e376961f90a861b29e61898a890c8b4806fafa4e5a1fe0f4f2261ceadd60a837470acda1d1bdbfc8471c",
    "signer": "0x4ab505DBD73CB27C1457E037607E5fB3B27915f9",
    "userId": "186630"
  }
}