{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148607",
    "entityType": "User",
    "nonce": "0x9c74f1a069c812d2612c41b642f0a973cd48a415aa72d2cc12344e5104733f91",
    "signature": "0xf9576b8280853e2ae6c6440444b147a9996075deeda358146ff9d929aa4aadcd4ae4476c954615806ca9ff98f5fb90b7a4de39f7634f0e6ba7dcdc53b9f175e21b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}