{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5479318909349179b704249da3824b2bfc29f3520f105c8936a6f247d8f43114",
    "signature": "0x3d9e349eacf3ae0cf049f94df75f9e954060a2adcce4a719ca7774d2d20ee7462377a898c174513fcd3dff6bbea76fd27569fbe449c3169d47a2bdc9a694f6a41b",
    "signer": "0x97C991EBEE1c79Da63246f56F0ACb7bcd8F424f8",
    "userId": "558787979"
  }
}