{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2b51a756046a410dbe2df9985902331c92ce65a25f5afd19f5c90a64ff53497a",
    "signature": "0xd8dd4ccb69bb262b92c00fd9f85d40abf73dc4f45ac8eeec80f71aa491b98b1808289abb8508d36c58cd15437c21a0c890f04aca1d700653d968d6b5101d73661c",
    "signer": "0xb7BB9AC64c0894fe13EA9711c7Dc8C3A4e54A88e",
    "userId": "654099762"
  }
}