{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90731",
    "entityType": "User",
    "nonce": "0x2ebd2375479a3f412b7e690274ffa66fe70762af16805041fa9c14964c298c1c",
    "signature": "0x1519dcc338309c94e101bca9d3a32f725a6ce5f0b65ec56b57f5d930e5cbcea25877caa4f0349f5951f18e21c8004674f748b11dbc120f8d037888ba3dedec551b",
    "signer": "0x6Af6D40d1d0B48D79D2bd3E3c8f0a45540130c0F",
    "userId": "89433"
  }
}