{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8e79292ba10a5e0aec7babd71f018e0ddd7bbc68855ce5892f59f06b5b12c707",
    "signature": "0xf7f9880f760cb30e74afb2522e9f63904cd4294e8238d5a6b05cb153afbe6ea93912968a59e24102bc2336d1ed827e55652cc5aec4e6b1a6d3ab28cf239bb1081b",
    "signer": "0xF146DAbBEa4a64091535c0e39A419D65150Fa66c",
    "userId": "449203874"
  }
}