{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57937",
    "entityType": "User",
    "nonce": "0xb211dbd26df2672af16ba846583b7be01a2d88f1c545374ccced9f0d029a3726",
    "signature": "0x8a0ea14884bac4aed9b61e648446a378640278480357c2b28bc3716976cd8add646c5351365ef6e6d865175b389270286029773ea3cf5410b400123e6a3a93c11c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}