{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1646345",
    "entityType": "User",
    "nonce": "0x5ad5ff15507d6bf1b351479f06ee6da7dccca94c18a4a22fd289d7ef48fab7f6",
    "signature": "0x82fb54c17c452d0d325634940daa156e1d33b5b2f2b1316bbb133d791f8ed6f44c3109adef7ec9c46ba2acf33465d7ebaedad785fb7df27474bc60d2cff324961c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}