{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208472",
    "entityType": "User",
    "nonce": "0xb6753de328469c781005b186101f6bbce40b812e57a18e40c07f19eb34dc53f5",
    "signature": "0xf64d2b937fa193be74208a7fb2bd4f2499a43ff20a6ad3f24ebb639e4b79dd4f1969c98cebe1e6e90c33f2d17488bef6676fe743542c70361e68939b67e209dc1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}