{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951616224",
    "entityType": "User",
    "nonce": "0xaf371b27a9e30cdbb5b9e5250a3bf84c8f665d8e53a00f3cf3ed990d5b0dc91e",
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    "signer": "0xb68FB6A5ae9015De46D9634e946c04517523Fa43",
    "userId": "134619804"
  }
}