{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125958",
    "entityType": "User",
    "nonce": "0x6921910c82f4fbc8cbcd9662ac85eaf31b202d7b2ec5b51674b5cad1aa0be4a8",
    "signature": "0x54d0f94bd022cd71cd9b7b144d860c8e982a11a79fa5cc82700f7636cea00a347f03421ebca5d811df41c94f1f6b81e7d0529f02fa2f03ddc1656c0a1f5c4bf41b",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}