{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "900057687",
    "entityType": "User",
    "nonce": "0xc43df0cdfcbd976e1babfca689b76c866d19572574f50724e22f72ad29a0c01c",
    "signature": "0x38e814c8516afcc6d4c6041903864c5c901fc84ed57d1092d3cf8ac9a91b98d1097ac479ba5774884fc586af1f09394c061a711d4ce6e7a69e5230468d93da341c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}