{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2eddda34885500a3260de68844dfdd6d7a2573b2ea1c0c6885b3681dc583a0ef",
    "signature": "0x9171dc1326f8765ef7f539fe303fe76b963e43df2fdb52fa04eef8435a6bf7ad2f6696aa0b1e26f06b3039f733e1a6ccb851ab0f186ef1c9e7ef8c3b70c420301b",
    "signer": "0x43295387a5Df98927625889A42ab17C4cb5148eE",
    "userId": "893996755"
  }
}