{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "349764208",
    "entityType": "User",
    "nonce": "0xdaf70831c1f9db518cf372285365153066b7b28daae3b7b9dfbc0c613c2f2a89",
    "signature": "0x8942fdbf4e33918f651f3fafcdf9e0bc3a71d873a2850173232c498c4e4f14772f56432c281c7fc672bc80b932eb09ae579b815083ab0760ae50fadd07b7f4b21c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}