{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50141",
    "entityType": "User",
    "nonce": "0xd3d2f2b536d1ed41fe6e224e5f116f73acf6240dfaebc80e60d94bd91bdd64d1",
    "signature": "0xe223065ef67306900539a7bf50813ce114f4c0f61b919464f574db46172b9d527fe2bb00c3ade1cc642b601d224b271217dc8d81635f5cd8e4d7fb4499ae681f1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}