{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "32528",
    "entityType": "User",
    "nonce": "0x246e4e57f6952eb4fda30a2ad143434c3622836c4a7f824fbd7221694e4fbc64",
    "signature": "0x6680b15a8a11e90ee0067189c6e9580986c3eacb551085bc61cd3fa2a3e7e7be3706c21c402616d775ea0327075a26fdc3db3175d55096fd7a01da96b4117f1d1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}