{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71899",
    "entityType": "User",
    "nonce": "0x2a359f70f16ef1cbcf39b52a9ec496bdd36981c685f3fe86129fd7079eadf2bd",
    "signature": "0xc6b43155b4fb2862032d1f5445620e946628d29c8689dadcb1c6efefb7f9ad1804c4cf582a76fcf9e59db3fef94e23e173ee6c971bda66aeda45157ee539afeb1b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}