{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258366476",
    "entityType": "User",
    "nonce": "0x913904c54890a2b89f372c9429630b3c7f8dc02e51f5c8287024828a829f3168",
    "signature": "0x04e3c81f405f2146c680a2a21530754bfb8140a2ac2a9aa647b150b70d36859e7437cc500cef696b7912b5160009578b256ceacd2b63eac9f18b7e5fd73a0b791b",
    "signer": "0x41169dA28a7d95b19615713245D5f46546c83008",
    "userId": "931487252"
  }
}