{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1687304",
    "entityType": "User",
    "nonce": "0x52e56db4b34656dff80601be182836d11bc1ed9678fc8b4b71ad2b2951a45a6b",
    "signature": "0x6ae9c4b46956184a1646ec4c6653f002a83d749c0c25e531c35deb52dd0b9fb417b3871ecaee464c3dae14c5fae112a6834d9d1773d8efee5d789e45b0d2f0b51c",
    "signer": "0x027dee4FAcAE77245A6F18464aC5fBf055796333",
    "userId": "485711275"
  }
}