{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386744",
    "entityType": "User",
    "nonce": "0x62482c6ea46ac3d8421e6f7c748b65a24539bd64bbf7bf28cddeef86ef29ec7e",
    "signature": "0x49f385c18375eb1ab9b8f9259db9eb0bd62ee196a859913572bbec64142c6041144735e4527b28175ee2d0f893e66c3a802dfb001757118bd7275bbda30bca5c1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}