{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53328",
    "entityType": "User",
    "nonce": "0x25caeea231e2d0698f4c9972f91dbd537a4245f83232ddc458c1de973af90eb4",
    "signature": "0xe30c82462388ccf243ede21d4061b04c1e24b105981b7ab7055c67d0810045ef05c8d572a2953ec5ecc2ca9539f41424c9a0792c18747e1a5e8f6206b5f3ec211b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}