{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67349",
    "entityType": "User",
    "nonce": "0xcccabb215ef925ff95577463ac381b88481d5e8e1dc3264aae7cd40cbd42336a",
    "signature": "0x568857a7b57c44464b0f5615dc11947bd6da74b55f1818b33dacc0a1eb83199905e77d86cc0eaa2d6cd0e3f6f1acd565aa9a4f8fcead781c2626444631ac2d771c",
    "signer": "0x6Af6D40d1d0B48D79D2bd3E3c8f0a45540130c0F",
    "userId": "89433"
  }
}