{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29401",
    "entityType": "User",
    "nonce": "0x5d5449d34c7f8e8a1ef53465d75edcf643314cc308db24e4f5ec0e98c08b05be",
    "signature": "0xf1e6c7f3ce965bd37a5000d96d7efc31cf814bdc6a137aac6b5f65037ce47bcf12ac5849f01585fa84785f6706170bdc92a015fcb71f988b1a78afa5e651264c1c",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}