{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29479",
    "entityType": "User",
    "nonce": "0x1f9142fbdfac7571db1cca8fffcea0f936c2c26ea94aa90b63cacbb2c48e29a2",
    "signature": "0x1a2a51f38a6513a2abb76a41d69856ac41bc30ad102c7bd2a27f1baa6df7a2175e0067b9bcf90885e2670f9de3aee8c943db71d3ac1a935d283a0f98caf3b7d61b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}