{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0x89bdb409d948c99362b55604b6c4a95c81fe1eb49bf335291b42158dd658a4bf",
    "signature": "0xde4bbbf940826dde8aea8b349472997a847ab38c5a26abd14f335f5f27c6c9303b0be011d92a5e6f779dc9b66aa598cbdcda76ddac0500cb58f856418dff500f1b",
    "signer": "0xb17bd5Be74Bbbe06Fb52cE5F0E1e373b5638bae5",
    "userId": "392710616"
  }
}