{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf725f888af4d13e415c787566a3d7f2560cd56b9de57b05f49259ceaca5defc6",
    "signature": "0x93c90ad0119129784dddfacbdce0ba78e5d8c4f8ea4627ad00de2430fc84dc9843181621a005bf81a10243528c3a4dc51079c04a47a38b2e50ce97a1f0363fb51b",
    "signer": "0x7132932920Fe7Cac789Bf949c09c6610d31Cde6F",
    "userId": "246796542"
  }
}