{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6256",
    "entityType": "User",
    "nonce": "0xf73a884b5fdaeb510180f291bc66e58b863f8575ed0ea3c1fd671d2e1fb34959",
    "signature": "0xa10e0726606c91ddda56b4f03627a58b8d66789747fdf8bc1ba9273ab815190c6e373b4c79c1c0ea4a6a649386d4c731fb0b04ce32503d612ca074e1043b3d141c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}