{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2853d9467f6921c956fd896389aad53fd5d0b554e7cec2bbc6fdf7dfcf0babf0",
    "signature": "0x5c560f1688eb3592b0e3b913c4d04adfc07426de86ecb9c670958f05d316496335142a55cfde41217f9d3bc4fe15089c5fa9cbf501b6f2c510eb43238f43d4b41c",
    "signer": "0x4c05b2D9e2Fbbc3e3Af380F64203574bcFc76575",
    "userId": "176897632"
  }
}