{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbf791b2dacb0c67259d92bdce42411c61eb746c9e79a421be122def7159f31a2",
    "signature": "0x5e1b1c45e00a686bc2a01431856af09f07d78891f00f8c7e306850915746b0d9359bc334116f16a91464e08247b8b31a0ea329d47580a7ae7d9ef88a1637468b1c",
    "signer": "0xbAD4cCe0b2dD0EfbCC940532E2B728D85F310c01",
    "userId": "56702780"
  }
}