{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1931557",
    "entityType": "User",
    "nonce": "0x7d5a7cf09f088d612f370ed294da44fec09e2880d979d6405109709a9fe92465",
    "signature": "0x94f4ad3598e3dad11288a526ab606a451917c495800cfe1ab815f9ef3d0072202125bf3f6707d4766759d0199ad4708ab07e9f2abb437f698a1499c8acaa02591c",
    "signer": "0x5bEfCeDB97A599Cd7fa25007139EB4c95E4FC503",
    "userId": "352545"
  }
}