{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbc30589b32d49d84b1c30e864c3b406263d01372a5fca51aec47ea2aac443cb7",
    "signature": "0x30a6b7b418377536f590b874c3804fc271cc7f3672dfc64b4fbcf39fff48f08c26ca28e83a36493cb015b33478fe5ac58de8bff947a842dbf541798dccf375181b",
    "signer": "0xb02031C47DC27C326100727Af71940Cf636B43e1",
    "userId": "912828029"
  }
}