{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65808",
    "entityType": "User",
    "nonce": "0x1b590912344de2657421b3918046a2a7a3ac1bb36f2b57450bae6e65ef3f8709",
    "signature": "0x3327d7d8050041896bfa7900097fe5a2dcb4bd2b7937a368384a0f74280d3424064164f7a085493ddb56cc4f2d4085cc2554206902064be75819bfbe649115d71c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}