{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157112461",
    "entityType": "User",
    "nonce": "0xf7d60477a201e55001455452604b73967f50c8dab23babe4d9044cdc63fded7e",
    "signature": "0xd384978e609c0ca125854ad64038da83c261dc93b8e540f669309cef4ed2ad00121b138f036f271c82d25bbb38a3810ef5d2d54764985a68ad1e9bd44ae5d5671b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}