{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x66aa6081541d6b524413d9e3e0a7200e198dae58c690c1363168072e5a306084",
    "signature": "0x351d07c8f2df3bdcd78cf49f596d4d69d39bf7f6bcf605e197cb4dcf55312e1d203ad2939538c34e9f550ace6552b78a8eafefcd7515013de6297f2dd1e3a3b11c",
    "signer": "0x560c25f840686E42A1E3411caCD44cB949a80B4C",
    "userId": "384820289"
  }
}