{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9b6ef691c1b049490d46d106bbfeef94fd1624b16602b1d299f8f3f51688ef9a",
    "signature": "0x95859db524665f84655993488687bfdddb073adbcc2124bf99cd0b6cabd6cffa7d8dd035d6531dd507726bab9ea9789f6d0bcf374fee423d0aa07394fabf21341c",
    "signer": "0x520296aD627D45164e31c459d73885ade51FC107",
    "userId": "585607472"
  }
}