{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcf771f8b91a4dd8a5944d3a185fa6dbe72655a5e58f652b777abaa96469b83bd",
    "signature": "0x211264c14da7bd599990073fefe280e2fad7f649952166517097defed1576b904089f4b3a728248d982a0f3a1e7ea1802da65285a37bc895cf0d7a90af41ae561b",
    "signer": "0x0BbaE3b1B763858507f1A953DC2f9Ef8343268D5",
    "userId": "307156675"
  }
}