{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2056ec744f41d877d1bbc0594c420d92f83294d57d8433b0f71f57f1ef83ceff",
    "signature": "0xc832a728b8d5b109f138c7cbcdc1f633ad4d3cb0752c624675d869d3f6da7c9e11d566fc2d722775d581f54255fc2342079139bbe799b11f303daeacd5d083671b",
    "signer": "0xaA6D44b912375bab6b82CF02498a163d7E6F13a1",
    "userId": "959969584"
  }
}