{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "409205234",
    "entityType": "User",
    "nonce": "0xd4281b25d540a08238e5c2ada614b0b2c1d2e88e9f21ab13bd39607483a1bad7",
    "signature": "0x35f1c4661a2d296689a8bca0eb73a8008f4afd128e1730ec7e65e6d54a1ae8f0443f340135d9b71600f1a004e17dd109713eddaf677e6e47d400133a485936f11c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}