{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943956503",
    "entityType": "User",
    "nonce": "0x1617cc46445487544602b7d7aa3a5e906b6ad42d7a3d4f22a00aea50cd40d41f",
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    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}