{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa92e077e050b99e683673c5b7cd2267429338acbd89a347295bb0d16898c2a73",
    "signature": "0x38cd8280f765dc058b5431133f15bab5cb1e0a776b241101cf70bd2dd3e4b37c387b36722992257928a62ee8573c90dc73aa6211ed649b4293071b23947ac96e1c",
    "signer": "0x45B68786Bd92722D79B63b43778aaA48CbAf871F",
    "userId": "896260194"
  }
}