{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152450",
    "entityType": "User",
    "nonce": "0x051da7548f731efbf07d65c4cda20cf5da4b62a5db167d0a352dfa7c12c47fb3",
    "signature": "0x6fdd6e74661a41de10f3b9468cff9043d8ca3c59b93ce40700663499a9f47fc66de5a56e162106c1342eb37cbd33db437fc5b026fe7e7c9ab352dfab960361981b",
    "signer": "0x926F8d71a7109CF6Cce00DA74e1BcF50aAf63E8b",
    "userId": "358546053"
  }
}