{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb315710d1fd15d4042c4d28c4377081052f578fe4b92779af3fccc7306ab45bc",
    "signature": "0xcca3d8c2fd36a18e460edb7364dce71f2d246851c8bdd825c3bf7a2b1c9b23b039410a7958a44daf9b21be7b38aabf7ae58fa8680fe4977c7ab4e8569f333f7b1c",
    "signer": "0x057B3dB41cC4b349935EB95e3FC86dD392BE1b99",
    "userId": "471832731"
  }
}