{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346686122",
    "entityType": "User",
    "nonce": "0xb1b4d2381706bea78caa4b8b1442f51e5961cd711359171d2d37378eaa65f88b",
    "signature": "0xf339cebdcce8821bd85b95abaa6698b7ce7f67b2586c926fb8f9867d39f01cbf7bb4bec48b526dd91dcd1d977a7eebe7e23a4a7d897e42ed0234ca0420e9ab2d1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}