{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x701fa5b1fd740593794679f55ad8d6e197b0d321675ae3d83efce5df97806e84",
    "signature": "0xe8becd0a68edecbdff1cc39a715e2e3e0836aca99d3f0b19c06916f8436225ef1e2f60375d578ef1096f28a3d462a8708b893f80f89ebcd51c897d28ec6383ff1c",
    "signer": "0x3341e7b2faF31D80Ac15180871366fEa6EB23ef0",
    "userId": "915341703"
  }
}