{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x0553f2f84b9dbf3983f65ce245ebcee47bc31060b1ffb475ee906cf8d8016c93",
    "signature": "0xb728690573cadd2bce7867a0d5911827314ea1149419443f021a2530d9782a2948bade668933923325da733be34c7a8e2787423f91de8b29b9262d0c67f4a2bc1c",
    "signer": "0x72C3229e8a009963fcCB987460463895a2989d71",
    "userId": "109371348"
  }
}