{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107555",
    "entityType": "User",
    "nonce": "0x6242e1b45d842aacf70909bf177fe97cc2764c86d1a77e7b2ebf65f7ea2a7d2e",
    "signature": "0xa94c2f32085e5759fde486fe45419a459f4111da8eb3d20c70fc10b71924f5f01ca7b4c5744924eb9a76fec0b1cb62183785439a77276e12e7a5e0d93b3739bb1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}