{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0x8f0112508cfeb4c3aa28a1890e4502609e9dc42d0ea21598a7f4434c734b3d47",
    "signature": "0xb963d0861bde9ced2ea6d27cf9e90318162a04c228c8b9ffd0e7a421c778bcb81b22a1504f44654d4ef6a55e9172d0e6d8fac0991ed610510716ee5465982d801c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}