{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x04de31a09178496a0d4b346e1bb3f6e75fa434aa506a1317f9333cb3d71f4ed4",
    "signature": "0x01b3e39bf787fcae68c772aae2dc70e37889b160d793b53ea9144fa329015a327b0b1e488088677427ddf2ad1b36eedc4fe24d14cfbbf1ac9417634b3330bf0c1b",
    "signer": "0x11F615b4758A4D564f0027F265e5D3a096863427",
    "userId": "637526557"
  }
}