{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1685476",
    "entityType": "User",
    "nonce": "0x65813cdd157fbd1d73fde6a2a24a9bdef64af0ccff24edfb92d94231751356be",
    "signature": "0x78ce656b7a14beab7eebbee525ff5ac861dc7d684e91efe849748c02e2738bf24f2859df9f25b0709607c71cf401863ba8fcc65af5d929eda3af96cf328112161b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}