{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "990579",
    "entityType": "User",
    "nonce": "0x39635cdbc62c874d4cbb351b7bccf91526157a5bedb6ba614b99f08a45985728",
    "signature": "0xa56726483e840c08c8341413d6fdcff89c1dfb666535e771f91701b4e77d985d3b1e19e07b82a402350d5242fd774e36692c270e26809d2618afcf9ea0b463741c",
    "signer": "0xdC3259a4db5A8697644164ebA1621FC6A4C37488",
    "userId": "792349587"
  }
}