{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x16238a081489b698636349c718a86cfeefdaab6da369be3460bb313630d2a66e",
    "signature": "0x509e3ad972b1afeab891ea66c54b50f2451a2a03b1efb520c9f20e1cb246e5ed0ecf7d94a98d2881af5b289da48db52e5ceff1223a9385c8d8e13f081ccada1b1c",
    "signer": "0x0Ba449F7400A162187E68F598615C66D109f77Dc",
    "userId": "294846622"
  }
}